Convolution kernel question

Hi, i've been wondering why kernels of smoothing and sharpening function are matrices with some of all elements is 1 ?
E.g:
Smoothing:
1/9 1/9 1/9
1/9 1/9 1/9
1/9 1/9 1/9
Sharpening:
-1 -1 -1
-1 9 -1
-1 -1 -1

Do you mean "the sum of all elements is 1"?

Similar Messages

Real Time kernel questions

I decided to compile myself a new kernel using a PKGBUILD from AUR, which contains Ingo Molnar's real time patch. I know that there are some entries int the wiki about this (Kernel Compilation with ABS, Custom Kernel Compilation with ABS, Kernel Patches and Patchsets), but they don't answer all of my doubts.
The major question is related to my graphic card's drivers. I'm a happy Radeon user using fglrx proprietary drivers. At the moment they are working fine on a vanilla kernel form [core], the problem is whether I would have to do some voodoo to make them work on a rt-kernel? Now I know what is written in wiki about installing Catalyst drivers on a custom kernel, but when on Mandriva I tried to install 8.1 on my rt-kernel, I had to do some tricks and recompile fglrx to make it work. Does anyone tried installing Catalyst drivers ver. 8.2 on a real-time kernel from AUR?
Another thing: I have a .config file from the previous rt-kernel. Would it be suitable for 2.6.24?
Finally, I recently read about grsecurity patchset. Did anyone tried it on Arch, especially on a real time kernel? Any problems?
Waiting for suggestions

broch wrote:first I hope that you understand that RT kernels on desktops are slower than preempt default or vanilla kernel?
I'm using one on my Mandriva 2008.0 and didn't notice any slowdown.
broch wrote:second: I use grsec (or RSBAC) kernels.
grsec will not work with anything messing up with memory (even Kolivas patches in past had issues with grsec). This can be fixed but then what is the point of enabling hardened kernel with disabled features?
I simply patch vanilla with grsec.
Remember that some pax options are incompatible with X (all explained when option is selected, so no way to make mistake)
finally it works well lowest overhead, best speed and easies to manage among kernel hardening patches (I do not count Apparmor, as this is rather limited tool)
If I understood you, then it's a choice between real time and more security, right?

R/3 kernel question

Hi gurus
i have a question.
We had a problem running /exe/dp ...its saying some errors. We did a copy of the whole kernel from production (prd) to the test system (tst). The PRD has a kernel support package level like 2307 and the TST has a lowest support pkg level. After copy of the PRD kernel to TST we were able to run DP executable without problems. Before we copied the PRD kernel to TST we had a successfull backup and after copying the kernel we had fails back up because BACKINT was broken or something and Prole sayd that the versions are not compatible. After the other team restore the old BACKINT it was ok - the archive was ok. I have this question. Is it possible to be from the copying of the kernel and is it becouse we actually put in the TST system a DP executable which is from PRD (highest support pack)?
Thanks

Hi,
Try using latest kernel...
If it fails switch between old and new kernel during installation...
Regards.
Rajesh Narkhede

Arch Kernel Questions

(This is a really low-priority set of questions.)
I just wanted to know what some of the differences between the main stable 2.6 kernel and Arch's 2.6 kernel are. I'm not a fan of compiling kernels, so I'd like to know what decisions are made for the default kernel.
Let me be more specific;
1. linux-2.6.26.1/Documentation/java.txt: apparently, native support for java binaries is planned for the kernel. Will this be reflected in Arch's kernel as well?
2. Besides x86, what architectures are supported by the Arch kernel (linux-2.6.26.1/arch)?
3. Does the Arch kernel support virtualization by default?
4. Which drivers (if any) are excluded from Arch's kernel (linux-2.6.26.1/drivers)? (If any, why?)
5. Which filesystems are supported by the Arch kernel (linux-2.6.26.1/fs)? In the install, there are only 5 filesystems available so I'm guessing it's just those 5?
--- And any other major differences that are worth noting.
Thank you for reading!
- vsk

there is a bug with xen in kernels newer then 2.6.18.
arch's kernel is as vanilla as the stable release is from what I gather. Other then a few patches and some config changes. Arch tries to stay as close to vanilla as possible with all it's packages. just do a diff between the two configs.

Kernel Questions

Just a couple questions about kernels.
1. What is the best (in your opinion) kernel patchset?
2. Is there a system-specific kernel config generator? (Takes the fun out of kernel compiling, I know )
3. I compiled a kernel without a PKGBUILD (gasp) and want to get rid of it. How would I go about doing that?

I can't comment on the two first questions, as I prefer configuring the kernel manually, and I've only been using vanilla sources for the last couple of years. The third one is easy, though.
The kernel image is usually installed as /boot/vmlinuz or something like that, and whether or not an initial ramdisk was installed depends on how you compiled the kernel. If you used mkinitrd, mkinitcpio or something like that, the image is likely to be placed somwhere in /boot. If you compiled the kernel using only the usual make, make modules, etc, you probably don't have any initial ramdisk to remove. The kernel modules are placed in /lib/modules/KERNELVERSION-KERNELNAME. You just have to remove the mentioned files and folders in order to remove the kernel.
NB! Unless you're comfortable with using a livecd and a chroot-environment to fix a broken system, I would suggest that you don't remove the kernel until you have a working replacement ready.

Arch Kernel Question

So... I guess I'm not a Linux 'newb' per-se, but I have a Arch newbish question. I've been a Gentoo guy for quite a while and like the system. However I have a couple new Arch boxes now that are just less headache to manage. My question is that I'm in the early stages of building a LiveCD / LiveUSB for personal use and I'm trying to decide what distro to use. The reason I'm leaning towards Arch is the larch stuff that is available.
Long story short, my question is -- within Arch are kernel upgrades just part of a system update (I believe they are from what I've seen) or is there a facility, like within Gentoo, to hold back a particular kernel?
My next question is somewhat similar -- if I'd like to run a vanilla kernel and maintain it myself how does that affect system updates?
The problem I see is that I need a lot of customization in the kernel, and I need it not to be bleeding edge. A lot of this has to do with the tools stability so I want to be sticking pretty hard to a kernel once it's implemented and I don't want it to be just magically updated.
Thoughts, comments, suggestions?
Kind regards,
--windexh8er

windexh8er wrote:
Cool, thanks! Is there any way that those modules are tied as dependencies to the kernel through the IgnorePkg? Wherein if I am ignoring kernel updates it will also ignore any modules that are in the package system?
Thanks for the quick reply and welcome.
--windexh8er
You're going to have to explicitly block anything that you don't want to upgrade, including modules. Of course there will come a time (major kernel version bump) that stuff simply won't upgrade anymore. In that case, pacman will fail with errors.

Gray screen of death - kernel question

Hi, can somebody tell me the reason for my grey screen of death?
Here is the log:
Interval Since Last Panic Report: 95519 sec
Panics Since Last Report:          2
Anonymous UUID:                    6FC3DCDE-E56D-4697-8458-B36C94FF65B0
Tue Oct 11 19:29:28 2011
panic(cpu 0 caller 0xffffff80002c268d): Kernel trap at 0xffffff80002aa7c0, type 14=page fault, registers:
CR0: 0x000000008001003b, CR2: 0x0000000000000018, CR3: 0x00000000223ae013, CR4: 0x00000000000206e0
RAX: 0x0000000000400000, RBX: 0x00000001092cf000, RCX: 0x0000000000000000, RDX: 0x0000000000000000
RSP: 0xffffff81d2be3bb0, RBP: 0xffffff81d2be3c10, RSI: 0xffffff80262a73e0, RDI: 0xffffff80262a73df
R8: 0x0000000000000001, R9: 0x0000000000400000, R10: 0xffffff80216ea000, R11: 0xffffff8021f7a1e0
R12: 0xffffff8021eeaa00, R13: 0x0000000000000001, R14: 0xffffff80262a73e0, R15: 0x0000000008000000
RFL: 0x0000000000010207, RIP: 0xffffff80002aa7c0, CS: 0x0000000000000008, SS: 0x0000000000000010
CR2: 0x0000000000000018, Error code: 0x0000000000000000, Faulting CPU: 0x0
Backtrace (CPU 0), Frame : Return Address
0xffffff81d2be3870 : 0xffffff8000220702
0xffffff81d2be38f0 : 0xffffff80002c268d
0xffffff81d2be3a90 : 0xffffff80002d7a3d
0xffffff81d2be3ab0 : 0xffffff80002aa7c0
0xffffff81d2be3c10 : 0xffffff80002aac51
0xffffff81d2be3cb0 : 0xffffff80002ab32a
0xffffff81d2be3cf0 : 0xffffff8000273af6
0xffffff81d2be3de0 : 0xffffff800027487a
0xffffff81d2be3e10 : 0xffffff8000237859
0xffffff81d2be3e50 : 0xffffff8000541519
0xffffff81d2be3ea0 : 0xffffff800054e4c8
0xffffff81d2be3f10 : 0xffffff800054ff05
0xffffff81d2be3f50 : 0xffffff800021e0c3
0xffffff81d2be3f90 : 0xffffff80002c1caa
0xffffff81d2be3fb0 : 0xffffff80002d7a0c
BSD process name corresponding to current thread: su
Mac OS version:
11B26
Kernel version:
Darwin Kernel Version 11.1.0: Tue Jul 26 16:07:11 PDT 2011; root:xnu-1699.22.81~1/RELEASE_X86_64
Kernel UUID: D52AAB80-B2BC-3C6E-BBEA-78BD28064998
System model name: iMac11,3 (Mac-F2238BAE)
System uptime in nanoseconds: 647627963873
last loaded kext at 24507527550: com.apple.driver.AppleBluetoothHIDKeyboard          152.3 (addr 0xffffff7f81bc3000, size 12288)
last unloaded kext at 130233982959: com.apple.driver.AppleUSBUHCI          4.4.0 (addr 0xffffff7f80a3b000, size 65536)
loaded kexts:
com.apple.filesystems.msdosfs          1.7
com.apple.driver.AppleHWSensor          1.9.4d0
com.apple.driver.AppleBluetoothMultitouch          66.3
com.apple.filesystems.autofs          3.0
com.apple.driver.AppleMikeyHIDDriver          122
com.apple.driver.AppleUpstreamUserClient          3.5.9
com.apple.driver.AppleMCCSControl          1.0.24
com.apple.kext.ATIFramebuffer          7.0.4
com.apple.driver.AppleMikeyDriver          2.1.1f12
com.apple.ATIRadeonX3000          7.0.4
com.apple.driver.AppleHDA          2.1.1f12
com.apple.driver.AGPM          100.12.40
com.apple.driver.AudioAUUC          1.59
com.apple.iokit.IOUserEthernet          1.0.0d1
com.apple.Dont_Steal_Mac_OS_X          7.0.0
com.apple.driver.AudioIPCDriver          1.2.0
com.apple.driver.AirPort.Atheros40          500.55.5
com.apple.driver.ACPI_SMC_PlatformPlugin          4.7.0b2
com.apple.driver.AppleLPC          1.5.1
com.apple.driver.AppleBacklight          170.1.9
com.apple.driver.AppleUSBCardReader          3.0.0
com.apple.driver.AppleIRController          309
com.apple.driver.Oxford_Semi          3.0.0
com.apple.iokit.SCSITaskUserClient          3.0.0
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless          1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib          1.0.0d1
com.apple.BootCache          32
com.apple.driver.AppleFWOHCI          4.8.6
com.apple.iokit.IOAHCIBlockStorage          2.0.0
com.apple.driver.AppleUSBHub          4.4.0
com.apple.iokit.AppleBCM5701Ethernet          3.0.6b9
com.apple.driver.AppleEFINVRAM          1.5.0
com.apple.driver.AppleAHCIPort          2.1.8
com.apple.driver.AppleUSBEHCI          4.4.0
com.apple.driver.AppleACPIButtons          1.4
com.apple.driver.AppleRTC          1.4
com.apple.driver.AppleHPET          1.6
com.apple.driver.AppleSMBIOS          1.7
com.apple.driver.AppleACPIEC          1.4
com.apple.driver.AppleAPIC          1.5
com.apple.driver.AppleIntelCPUPowerManagementClient          166.0.0
com.apple.nke.applicationfirewall          3.0.30
com.apple.security.quarantine          1
com.apple.driver.AppleIntelCPUPowerManagement          166.0.0
com.apple.driver.AppleBluetoothHIDKeyboard          152.3
com.apple.driver.AppleHIDKeyboard          152.3
com.apple.driver.AppleMultitouchDriver          220.62
com.apple.driver.IOBluetoothHIDDriver          2.5f17
com.apple.kext.triggers          1.0
com.apple.iokit.IOBluetoothSerialManager          2.5f17
com.apple.iokit.IOSerialFamily          10.0.5
com.apple.driver.DspFuncLib          2.1.1f12
com.apple.driver.AppleSMBusController          1.0.10d0
com.apple.kext.ATI5000Controller          7.0.4
com.apple.kext.ATISupport          7.0.4
com.apple.iokit.IOSurface          80.0
com.apple.iokit.IOFireWireIP          2.2.3
com.apple.iokit.IOAudioFamily          1.8.3fc11
com.apple.kext.OSvKernDSPLib          1.3
com.apple.driver.AppleHDAController          2.1.1f12
com.apple.iokit.IOHDAFamily          2.1.1f12
com.apple.iokit.IO80211Family          400.40
com.apple.driver.AppleSMC          3.1.1d2
com.apple.driver.IOPlatformPluginFamily          4.7.0b2
com.apple.driver.AppleSMBusPCI          1.0.10d0
com.apple.driver.AppleBacklightExpert          1.0.3
com.apple.iokit.IONDRVSupport          2.3
com.apple.iokit.IOGraphicsFamily          2.3
com.apple.driver.BroadcomUSBBluetoothHCIController          2.5f17
com.apple.driver.AppleUSBBluetoothHCIController          2.5f17
com.apple.iokit.IOBluetoothFamily          2.5f17
com.apple.iokit.IOUSBMassStorageClass          3.0.0
com.apple.iokit.IOSCSIBlockCommandsDevice          3.0.0
com.apple.iokit.IOUSBHIDDriver          4.4.0
com.apple.iokit.IOFireWireSerialBusProtocolTransport          2.1.0
com.apple.iokit.IOFireWireSBP2          4.2.0
com.apple.driver.AppleUSBMergeNub          4.4.0
com.apple.driver.AppleUSBComposite          3.9.0
com.apple.iokit.IOSCSIMultimediaCommandsDevice          3.0.0
com.apple.iokit.IOBDStorageFamily          1.6
com.apple.iokit.IODVDStorageFamily          1.6
com.apple.iokit.IOCDStorageFamily          1.7
com.apple.driver.XsanFilter          403
com.apple.iokit.IOFireWireFamily          4.4.3
com.apple.iokit.IOAHCISerialATAPI          2.0.0
com.apple.iokit.IOSCSIArchitectureModelFamily          3.0.0
com.apple.iokit.IOUSBUserClient          4.4.0
com.apple.iokit.IOEthernetAVBController          1.0.0d5
com.apple.iokit.IONetworkingFamily          2.0
com.apple.iokit.IOAHCIFamily          2.0.6
com.apple.iokit.IOUSBFamily          4.4.0
com.apple.driver.AppleEFIRuntime          1.5.0
com.apple.iokit.IOHIDFamily          1.7.0
com.apple.iokit.IOSMBusFamily          1.1
com.apple.security.sandbox          165
com.apple.kext.AppleMatch          1.0.0d1
com.apple.security.TMSafetyNet          7
com.apple.driver.DiskImages          330.1
com.apple.iokit.IOStorageFamily          1.7
com.apple.driver.AppleKeyStore          28.18
com.apple.driver.AppleACPIPlatform          1.4
com.apple.iokit.IOPCIFamily          2.6.5
com.apple.iokit.IOACPIFamily          1.4
Model: iMac11,3, BootROM IM112.0057.B00, 2 processors, Intel Core i3, 3.2 GHz, 16 GB, SMC 1.59f2
Graphics: ATI Radeon HD 5750, ATI Radeon HD 5750, PCIe, 1024 MB
Memory Module: BANK 0/DIMM0, 4 GB, DDR3, 1333 MHz, 0x857F, 0x483634353155363446393333334700000000
Memory Module: BANK 1/DIMM0, 4 GB, DDR3, 1333 MHz, 0x857F, 0x483634353155363446393333334700000000
Memory Module: BANK 0/DIMM1, 4 GB, DDR3, 1333 MHz, 0x857F, 0x483634353155363446393333334700000000
Memory Module: BANK 1/DIMM1, 4 GB, DDR3, 1333 MHz, 0x857F, 0x483634353155363446393333334700000000
AirPort: spairport_wireless_card_type_airport_extreme (0x168C, 0x8F), Atheros 9280: 4.0.55.4-P2P
Bluetooth: Version 2.5.0f17, 2 service, 19 devices, 1 incoming serial ports
Network Service: Ethernet, Ethernet, en0
Serial ATA Device: WDC WD1001FALS-40Y6A0, 1 TB
Serial ATA Device: PIONEER DVD-RW DVRTS09
USB Device: hub_device, 0x0424 (SMSC), 0x2514, 0xfa100000 / 2
USB Device: Internal Memory Card Reader, apple_vendor_id, 0x8403, 0xfa120000 / 4
USB Device: BRCM2046 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0xfa110000 / 3
USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x8215, 0xfa111000 / 5
USB Device: hub_device, 0x0424 (SMSC), 0x2514, 0xfd100000 / 2
USB Device: DataTraveler 2.0, 0x0951 (Kingston Technology Company), 0x1603, 0xfd130000 / 5
USB Device: Built-in iSight, apple_vendor_id, 0x8502, 0xfd110000 / 4
USB Device: IR Receiver, apple_vendor_id, 0x8242, 0xfd120000 / 3
FireWire Device: MAC COMPANION, iomega, 800mbit_speed
Thnaks a lot, Martin

I upgraded with only 4GB (2x2GB). than added 4x4GB.
Everything was fine. But I was experiencing some issues, I was trying lots of little programs.
I'm a new Mac user, so I was just trying to find out what works for me and what not.
So then I wanted to reinstall Lion, clean, because the computer got slow, and I wanted to get rid of all the accumulated junk.
I couldn't reinstall Lion because of the error message saying that "it couldn't download needed files to complete the installation".
So I ended up installing Lion on an external hard drive and clone it to my Macintosh HD.
Seems to work alright, it's fast again, but I'm still getting the grey screen every now and then.
Hope this makes sense...

Oldschool K6/200 Kernel Question [SOLVED] BUT MORE QUESTIONS

Ok so I've been playing around with the Idea of switching over to linux for awhile now. I've been told that Arch is a great distro to start learning on. That Being said I have an old calibri with a AMD K6/200 running an old red hat distro my father used to use. Well I looked through the documentation for ArchLinux and found this
"Arch Linux is optimized for the i686 processor and therefore will not run on any lower or incompatible generations of x86 CPUs (i386,i486,i586). A Pentium II or AMD K6-2 processor or higher is required. x86-64 architectures are also officially supported."
Posted in the "Official Arch Linux Install Guide" Great it should work on my computer. So I download the archlinux-2008.06-core-i686.iso burn it and boot from it.... says wrong Kernel for my CPU. I'm kinda stumped any help?
Last edited by Jorad (2008-08-03 21:12:27)

Well thank you all very much. I think i'm going to try all of your ideas out. Possibly starting off with Xubuntu as it seems to be an easier transition. I currently have 3 of these machines and it seems this will be an enjoyable challenge. xubuntu's wiki does not seem to be as user friendly as this so it's going to take awhile for me to find the proper kernel lol. here goes nothing..... by nothing i mean XP
EDIT: Also the current Kernel of Xubuntu says that it supports 1386-class processors. I guess I'll find out sooner or later. Thanks again
P.S I'm getting the alt install anyway... hope installation isn't going to be a hassle lol
Last edited by Jorad (2008-08-05 03:34:22)

MSI Wind kernel question

Is there any Arch package of kernel compiled for Wind?

Quote
I downloaded CPUz but it shows Specification as 1.6Ghz and core speed as approximately 926mhz. The power on button changes from blue to orange, but other than that i have no idea if it is OCing.
Yes, you're overclocking. The CPU only runs at full speed when its under full load (to save power). Normally when idle, the CPU speed drops to 800mhz, so the fact that yours is idling at 926mhz means the OC is active. Put the CPU under heavy load, using something like SuperPi or Prime95, and you'll see the CPU speed will exceed 1600mhz.

Need mathematical definition of convolution kernel!

Does anyone happen to know the spatial filter matrix for a "blur" filter or for a "sharp" filter? For example , we may have a "blur" filter kernel like :
1 1 1
1 1 1
1 1 1
and a "sharp" filter kernel like :
0 -1 0
-1 4 -1
0 -1 0
But I do need to know how the coefficient matrix (kernel) is calculated ?For example, they may be calculated like :
v = e^(-(x*x + y*y) / (2 * sd * sd))
Anybody can help me ? Thanks.

The formula you give there looks like a Gaussian to me, and produces a Gaussian blur filter. That's about all I can tell you without looking up the Laplacian filter and its derivation, and I'm afraid I don't have time for that before work. I think the sharpening filter you gave is empirical rather than derived (and it's also wrong: change the 4 to a 5, because the sum of the components should equal 1. Otherwise if you apply it to a totally white image, you'll get a totally black image).

Trying to install Vmware Player on OEL 4-kernel 2.6.9-78.0.0.0.1.ELhugemem

All
I need to run a preconfigured Vmware VM on one of ours Enterprise Linux servers. I've already installed VMware-Player-3.1.2-301548.i386.bundle on the machine, no error message, but now when I try to run vmplayer I am getting the following message:
before you can run vmware, several modules must be compiled and loaded into the running kernel:
kernel headers 2.6.9-78.0.0.0.1.ELHugemem
kernel headers for version 2.6.9-78.0.0.0.1.ELHugemem were not found...
I've already searched both on google and on Oracle website for a package containing this version of kernel headers, but didn't find them.
I've did an up2date -i kernel-devel, some kernel headers got installed, but it seems they are at the wrong version:
[root@dscdap01 ~]# ls -la /usr/src/kernels/
total 24
drwxr-xr-x 4 root root 4096 Nov 2 06:59 .
drwxr-xr-x 4 root root 4096 Dec 4 2008 ..
drwxr-xr-x 17 root root 4096 Nov 1 09:42 2.6.9-89.31.1.0.1.EL-hugemem-i686
drwxr-xr-x 17 root root 4096 Nov 2 06:59 2.6.9-89.31.1.0.1.EL-i686
As far as I can see, I have two paths for solving this:
1: update the running kernel to 2.6.9-89.31.1.0.1.EL-hugemem-i686 - in order to do that I'll have to restart the machine, which is quite risky because this is an important machine used for many projects and I do not have physical access to it; in case something goes wrong I'll have to make an SR to the GIT guys, and pray for a quick resolution
2. find this particular version on kernel headers (2.6.9-78.0.0.0.1.ELHugemem), install them in a non-standard location and then point vmplayer installer to that location in order to compile and plug them into the running kernel
Questions:
- If I choose the 2nd path:
-- where can I find this particular kernel headers version?
-- after vmplayer compiles them, will it request a machine restart, or plugging them into the running kernel will be possible without restart?
-- I already did an up2date -u, so the entire system excepting the running kernel is updated to whatever is in Oracle's internal repositories. Will this conflict somehow with an older running kernel and modules?
-If I choose the 1th path (update the kernel itself and reboot the machine):
-- will then vmplayer be able to compile and install the kernel modules without asking for another restart?
Thanks a lot for your feedback.
Any idea is appreciated, even pointing me to someone in Oracle that might help (I am an Oracle employee) would be useful.
Regards
Serban

Thanks for your reply Joe. I did not realise that I shall search for the package name without "ELHugemem" part since the headers are probably the same. Please correct me if I'm wrong here.
So I downloaded the i686 package, but now I get this message:
[root@dscdap01 ~]# rpm -iv kernel-devel-2.6.9-78.0.1.EL.i686.rpm
warning: kernel-devel-2.6.9-78.0.1.EL.i686.rpm: V3 DSA signature: NOKEY, key ID 82fd17b2
Preparing packages for installation...
package kernel-devel-2.6.9-89.31.1.0.1.EL (which is newer than kernel-devel-2.6.9-78.0.1.EL) is already installed
I am not sure if I shall do a "rpm -ivf" for this package, forcing it to install. Will this command install the package alongside the existing one, or will it overwrite it? My guess is that it will install it alongside the existing one, but since this system is an important one I would prefer to ask before doing any stupid mistake...

I cannot get my Mac Pro (Original) MacPro1,1 to boot with the 64 Bit kernel in 10.6.8

I cannot get my Mac Pro (Original) MacPro1,1 to boot with the 64 Bit kernel in 10.6.8 (this is a 2 x 3Dual-Core Intel Xeon machine).
Firmware = MP11.005C.B08 (EFI 1.2) 1.7f10 (SMC 1.1)
Will it not run the 64 bit kernel?
Is there a firmware upgrade to allow this?
Should I bother?
It won't boot with the Key 6 & 4 method.
or using Terminal command;
sudo systemsetup -setkernelbootarchitecture x86_64
Any suggestions?
Thanks in advance...
Eric

Because it can't and doesn't have a 64-bit supported firmware.
UEFI (EFI64) was not finalized and adopted until very late 2007 and introduced in 2008, by Apple, Intel, other members of EFI Group and Unified EFI. The Mac Pro Mid-2010 was the first time though that 64-bit mode was the default.
Does it matter? not really. you can't install 48GB RAM anyway, while there are some improvements from 64-bit kernal.
Also can't boot Windows 7 64-bit DVD to install properly. But you can run Windows 64-bit kernel because you have a 64-bit Xeon.
Macs that use 64-bit kernel
64-bit kernel mode Snow Leopard
Booting with 32-bit or 64-bit kernel
Mac OS X- 64-bit kernel questions
http://macperformanceguide.com/SnowLeopard-64bit.html

How do I ensure new kernel will boot?

I have just done a 'pacman -Syu' and noticed that kernel26-2.6.4-1 is included in the updates. I'm currenlty running Arch 0.6 with the stock kernel 2.6.3. What do I need to do to ensure that my machine will boot with the new kernel? Do I just run
# lilo
from a command prompt? Is there something additional I should do? I haven't updated a kernel in Arch yet and didn't see a recent post that explicitly explained it. If I missed, please point me to that.
Thank you.

OK, thanks. I'll get into 'tweaking' the kernel questions later.

Why is a layer blending mode result altered by adding and effect?

I've done a search online and haven't come up with an answer but does anyone
know why a layers blending mode result is altered by adding an effect?
I am using CS3 on a PC (Windows XP SP2) and have two layers; one a Tiff and
a second a text layer with an ambient light and a spot shining on them. Both
layers have 3D turned on and accept lights and are in the same position in
space.
To make the text, which is coloured black, sit better I changed the layers
blend mode to soft light which works well.
I wanted to soften the edge of the text a little so I added a Fast Blur
effect and suddenly the result of the blend was completely different. If I
turn off the effect it goes back to what it was before but even if the Fast
Blur is set to zero, ie no blur on the layer, the blend result is altered.
Does anyone know what's going on?

Many thanks for that. I tried the Box Blur but it too shifted the result of the blend. In the end, to get this job out of the door, I changed the colour of the text to orange, lowered the opacity and used Multiply as the layer blend mode. Adding the Fast Blur effect to this didn't shift the result of the blend mode. It's not as sexy a look as using Soft Light but it works. I wonder if it's something going on with the maths or this a real bug? <[email protected]> wrote in message news:[email protected].. > Presumably a bug that uses the blur's convolution kernel when it > shoulddn't. Please report at <a href=http://www.adobe.com/go/wish>. Still, > sometimes changing the blend behavior is inevitable. Even if the layers > visually look the same, the actual pixel values may change and thus create > a different result in the blend formulas. That should not be the case > here, though. Replace the Fast Blur with Box Blur set to 8 or 9 iterations > and the result should look the same, but without the blending problem, I > guess. > > Mylenium

LabVIEW laplacian filter

I just loaded LabVIEW 2013 and the Vision Module 2013, although I have used LabVIEW for years.
I have a project requiring machine vision.
I started up the Vision Assistant, and used some of the tools to see what would work.
I found that applying the filter, Laplacian edge detection, would get me a step closer to identifying the edge as necessary.
I then went to LabVIEW and created a VI to capture images from the camera (with help from Examples of course).
I can display the image on the screen.
Then I went looking for the vision processing VI that will apply the Laplacian edge detection.
I found the filters, and the Edge Detection, but I don't see how to apply the Laplacian filter that I used in the Vision Assistant.
What am I missing? Where can I find this tool in LabVIEW?
Thanks,
Jeff
Solved!
Go to Solution.

The Lapalacian filter, and all others are created by using the convolution kernel vi.
Why don't you just use Vision Assistant to export your script to LabVIEW code? Then you can have a look inside.
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Convolution kernel question

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