Brightness Adjustments

I think that a lot of the organisational features of picasa should be incorporated into lightroom as i think the organisation is 100X better in picasa and i think i may carry on using picasa as a resutl of this, the snycronisational features are much better, e.g. you can select which folders you want to be syncronised/checked for new photos.
Also the whole overview is better with the albumns in date order and year order etc, to the left (this should replace libraries/folders in lightroom) and when all photos are slected (e.g. My Pictures fodler) each sub folder should be shown under a sperarte heading and should be in date order etc.
i know all ths iis quit hard to understand as i have slightly rambled on but i feel that adobe have not looked into what is wanted from the gallery programs etc...
i love all the extra thigns you can do compared to in picasa but it is a lot less for it organisational skills which is a big let down, maybe in a few upgrades i might be converted when the above problems are fixed.
sorry to be an *** but adobe you should have done more market research and seen what your competitors where doing, it sworkign what picasa (google) are doing and i dont think alternatives are really an option.
sorry if my view points seem a little harsh but i think they should be largley cosnidered.
Thanks a lot
Sam Jones (aged:16, P.s. please dont doubt me or throw my comments to one side because i am younger i still have a perfectly good idea of what i am speaking about if not a lot better than older people)
thanks.

to serious, we get complained at
to childish/imature, we get complained at
what do you want?
i don tthink i know or say at anytime that was the problem
it is simply an opinion
i knew that if i stated my age i wouldnt be taken seriously with my opinion
why have you discouraged a teenager trying to have a hobby, just because im younger does not mean i am any less than you,
would you rather me be out in the streets being a 'chav' (yob)?
thanks a lot?

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I am home now and I just confirmed that I have a brightness control slide in my Sys Pre---> Display. However, this for my Apple Cinema display. When I was using another name brand, this wasn't available to me. Nor could I use F1 and F2.
I also went to Sys Pre---> Keyboard---> Shortcuts---> Display---> Changed those values to F5 and F6, since they were free for me. And they were able to change the brightness for me. Went to test them, and I was just given that error chim and nothing on the display changed.
So I went on down the list... Accessibility---> checked Contrast and changed those to F5 and F6. Ahhh, now I can change that. Now I know that I can use the F5 and F6 for something.
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KOT

Imac with AMD Radeon 6770m chipset will not allow brightness adjustments in Bootcamp Windows 7

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In the past the Apple keyboard would easily adjust the brightness or I could use the Bootcamp Control Panel and use a slider to change the brightness settings. The keyboard function keys (F1 and F2) pop up the brightness control options and shows the onscreen slider moving as I am changing the display setting but there is no actual brightness change. The Bootcamp Control Panel has actually removed the Brightness Tab as if to indicate this freature is not available. (Bootcamp version 3.2 and 3.3). I can Image this Win 7 copy to an 21" Wide Screen 2009 release of the Imac that has a Nvidia Chipset and the Bootcamp Control Panel now displays the Brightness Tab AND the Keyboard control option works perfectly.
Suggestions?
Pete

You're probably seeing bad performance because you don't have the latest graphics drivers installed. The ones provided by Apple's Windows support software are long out of date. Going to AMD's main website and navigating to the download section won't get you the correct files. This is a direct link to the proper driver.
http://www2.ati.com/DriverS/mobile/12-10_mobility_vista_win7_win8_64_dd_ccc_whql _net4.exe

40UL605U Screen goes black whenever a bright or high contrast screen is displayed.

I have a 40UL605U that I purchased a while back. Up until a couple months ago it worked wonderfully with only a few of the issues that I see people have mentioned in reviews and on the forums (wireless connectivity). In the last couple months, somewhat intermittently, the screen will go completely black any time a bright screen is shown.
When this first started happening, about 5 months ago I'd guess, I thought it was just some artifact of having switched to DirecTV. After playing with some picture and brightness adjustments it seemed to go away. To be totally honest I don't remember what I did to make it stop and now I'm led to believe it was just as likely the problem would've gone away even if I hadn't done anything.
Within the last couple weeks the problem has come back and I haven't been able to get rid of it, although I have been able to figure out a couple reasons why it happens.
It seems like any time there's a picture of say, snow with a little animal running around or a bird flying in a clear and bright sky, or explosions or... white screens as backers for cars in commercials the screen goes completely black with audio playing in the background.
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Bringing up the menu seems to make the problem stop, either with the tv's menu or directv's guide which makes me believe it has something to do with the way the television is processing contrast rather than some suggestions that it could be the input. If I turn the brightness and backlighting up enough to wash out the picture some, it helps make it stop blacking out... at the sacrifice of the picture, which is kind of the point of having the tv.
Also, I found that pausing a recording from a dvr when a picture would normally black out allowed me to adjust the settings until I find a spot where the tv will show the picture with sections flickering rather than completely going black. Changing settings like brightness or backlighting, contrast ratio or playing with the clearview features make the picture go black again. It should be noted that changing these setting either up or down could make the picture go out and as of right now I haven't figured out exactly what settings work best while retaining a decent picture.
It happens under HDMI which I use for both DircTV, Xbox and Netflix through the wireless adaptor. I haven't tested it on my computer, but I'll try to tomorrow after work and update if there's any difference.
For the record, the tv's been great up until now and my mom's toshiba projection tv's been working for almost 12 years now. Just a shame to have to get a new tv when this one was just getting settled in.
Any help or input would be appreciated. Thanks.

It doesn't sound like there's going to be a simple fix that you could do yourself. If you haven't yet, try cycling the power by unplugging it, leaving it for a minute, and then reconnecting it.
If that doesn't help, try resetting the settings. Press the MENU button and open "Setup." Select "Installation." Open "System Status" and select "System Information." Select "Factory Defaults." Finally, select "Yes."
If that doesn't help either, your TV likely needs servicing.
- Peter

Video adjustments don't carry over into iDVD 08

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Why won't iDVD accept the iMovie video adjustments?

Update: I tried "sharing" my project to iTunes in mp4 format. That worked fine. The brightness adjustments were there, the movie looked good in iTunes. However, when I dragged it into iDVD and played it back, it was dark again!!! Further, I tried exporting the project to Quicktime, and even in the Quicktime viewer it had reverted to the too dark original! I really don't understand this. Why can't I make brightness adjustments in iMovie that will stick, and be useful in iDVD?

Brightness adjustment in Final Cut Express HD.

Dear members;
I have a clip that is a little dark and I would like to make it brighter. I've tried the levels adjustments for the black and white points. While it has improved a bit I still feel that I need to improve it more.
After trying the brightness adjustment in Final Cut Express I found that the clip looked too washed out and the colors became somewhat lifeless. The contrast and brightness adjustments combined didn't produced very good results either. This is the route I would have taken with a digital still photo but it doesn't seem to be working with my clip.
What am I doing wrong ? Is there a way to improve the brightness so that the clip doesn't look washed out and the colors still look good ? How can I make this adjustment ?
Thank you in advance,
Joseph Chamberlain

Hi Ian:
I haven't tried the gamma filters yet. I will give it a try.
This may be the case you describe (a shot that can't be saved or improved) but I would like to think that it can. The footage is from a movie and I extracted a 20 sec clip to include in a presentation.
Since you mention both, what are the differences between the Gamma and Gamma correction filters ?
Also, how can I post a screenshot to this list as you suggested ? Is there a page on this web site where photos can be posted for members of this discussion groups ?
Thank you in advance for your help.
Joseph Chamberlain

Brightness Control Hotkeys are not working after windows 10 Update

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Hi Erico,I tried your method It says The best driver software for your device is already installed I Used this tool http://www.techspot.com/drivers/driver/file/information/16748/and I cleaned up all display drivers.windows searched in updates for drivers and updated all video drivers.now brightness control key is workingbut when i checked dedicated video memory it says 128 MB.but my dedicated video memory in 1024 MB.Take a look for Video memory

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What are you guys finding to work best, the auto brightness and leaving it as it came from Apple (in the middle) or adjusting it yourself..I tend to leave it on full brightness...and I know this impacts battery life, but wanted to see what you guys thought.

I still can't figure out how the whole auto brightness works. you can still set the brightness and then leave auto "on"
So does it just try to automatically keep the brightness "medium bright" if you have it set to medium and "auto" or what? I haven't been able to see any automated brightness adjustments at all. I tried going from a really dark room to a really bright room to see if I could tell if it was auto adjusting. I couldn't tell. maybe I'm doing something wrong.

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Image Processing in C#

What I want to do is as in the following.
1. Load image from jpg/bmp file and display on the PictureBox or any other image control keeping image ratio
2. Perform Image Processing, for example, zoom in/zoom out, change brightness/contrast
Does any .NET class supports this? or should I implement it with my own code?
If I should make my own code, is the PictureBox optimal control?

Hmm. If you don't know where to start then maybe the do-it-yourself approach is not going to work for you.
Here's code for a simple control you can use to display an image with a transform matrix and a color matrix.
using System;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Drawing.Imaging;
using System.Windows.Forms;
class ImageControl : Control
public Image Image
get
return image;
set
image = value;
Invalidate();
private Image image;
public Matrix Transform
get
return transform;
set
transform = value;
Invalidate();
private Matrix transform = new Matrix();
public ColorMatrix ColorMatrix
get
return colorMatrix;
set
colorMatrix = value;
Invalidate();
private ColorMatrix colorMatrix = new ColorMatrix();
protected override void OnResize( EventArgs e )
Invalidate();
public ImageControl()
this.DoubleBuffered = true;
protected override void OnPaint( PaintEventArgs e )
if( image == null ) return;
e.Graphics.ResetTransform();
e.Graphics.Transform = transform;
ImageAttributes imageAttributes = new ImageAttributes();
imageAttributes.SetColorMatrix(
colorMatrix,
ColorMatrixFlag.Default,
ColorAdjustType.Bitmap );
e.Graphics.DrawImage(
image,
new Rectangle( 0, 0, image.Width, image.Height),
0, 0, image.Width, image.Height,
GraphicsUnit.Pixel,
imageAttributes );
You can set a transformation matrix to do the zooming, panning, etc. And set a color matrix to do simple contrast brightness adjustments.
// Some example matrices
float[][] colorMatrixElements = {
new float[] {2, 0, 0, 0, 0}, // red scaling factor of 2
new float[] {0, 1, 0, 0, 0}, // green scaling factor of 1
new float[] {0, 0, 1, 0, 0}, // blue scaling factor of 1
new float[] {0, 0, 0, 1, 0}, // alpha scaling factor of 1
new float[] {.2f, .2f, .2f, 0, 1}}; // three translations of 0.2
ColorMatrix colorMatrix = new ColorMatrix( colorMatrixElements );
Matrix transform = new Matrix(
1.5f, 0.0f, // horizontal scale of 1.5, 0
0.0f, 0.5f, // 0, vertical scale of 0.5
20.0f, 40.0f, // horizontal offset of 20, vertical offset of 40
Contrast and brightness are performed together in a single matrix. Contrast scales the output range and brightness is the offset.
Zooming is just scale and offset.

WIndows Vista RC1 (No Drivers)

Well, hey there.
I've just installed Windows Vista RC1 (March 2009). It's pretty recent.
I went ahead and installed my Boot Camp drivers, but lo and behold nothing installed. I figured it was a botched installation, formatted that partition, and started again.
So, I have tried once again and I am having all kinds of problems. For some reason I can't change the brightness of my monitor or keyboard (both are max all the time) and much of my hardware is not recognized. (By 'much' I mean 'all'. I manually installed a wireless driver.)
Vista installs smoothly, I go about installing the BootCamp drivers and the installation window itself says it's installing each component, but the device manager isn't changing at all. Everything remains "Generic" & "Unrecognized".
I just want Vista to play some games so I can blow off some steam & to do some 3ds Max stuff for college.
Why is this simple process of installation so difficult?
This Apple business is becoming very stressful very quickly.
What I want is some regular old drivers for my stuff to work, there's nothing unique about the hardware so why is it so awkward and frustrating & difficult to get drivers? At best, can someone maybe tell me what kinds of hardware would be in the late 2008 MacBook Pro & how do I get my brightness adjustments to work?
And also, why don't Apple just have individual drivers for download: Nearly every other manufacturer & vendor does (Dell, HP, Sony, Lenovo, Acer, etc.. They use third party hardware and drivers too).

I don't have a MacBook series, and in the folder "Apple" are drivers for various devices.
Try to install directly. If not try using Device Manager to update.
And try running system file checker just for good measure
*sfc /scannow*
and follow that up with hardware check of your boot partition (schedule chkdsk).
Whether you can install Nvidia drivers manually or not, that would help.
And DO create system restore points and backups.

MONITOR SCREEN PROBLEMS - has anyone else had this ? HELP ..

Friends,
I am going nuts ( no don't answer that one ! ).
Recently ( possibly after the 10.5.2 graphics update - I can't exactly recall ) my LG flat screen monitor has started to look like a grainy 60's acid art house experiment !!
It is subtle but most disconcerting as I use my beloved G5 every day with Logic P8.
I have tried changing settings - calibration the lot... but still it looks strangely weird - like a TV that is not quite tuned in.
Gradients and shaded areas have weird lines instead of fine tones and artifacts appear around type and lines where was once beautiful and clear graphics.
When I first bought the LG 204WT 20" monitor 5 months ago it was fine !.
I have been using the recommended DVI output and tried different cables and the alternative input - the effect is still there but not quite as bad when using connector to RGB input.
The shaded areas in finder and Logic are almost transparent and grainy with a light blue / pink halo like effect around windows and graphic boxes.
I *don't know how to explain it really but I do hope someone out there may have some answers or at least have an inkling of what I'm trying to describe..*
As if I couldn't make matters worse I did an archive and install to roll back to 10.5.1 early hours of this morning - this didn;'t cure the problem and I lost the use of some music plug -ins and authorizations in the bargain.. Maybe it is time to call it a day and take a long break.
Really I should get a pen and paper and sit with my guitar an a darkened room for a few days.
I called the Mac shop where it was purchased then LG but with no help, advice or offers to replace it.
I guess the monitor basically works but this strange behaviour is arguably quite subtle and may not be considered 'serious' by most people !
*In the meantime if any of you lovely people could take my situation seriously and offer any practical advise I would be most appreciative.*
Many thanks - not quite lost it yet - Paul

Hi Pancenter,
Many thanks for taking time to message.
The resoloution is set as it should be and millions of colours is selected etc.
The screen has had several contrast / brightness adjustments and a factory reset with no improvement.
Also someone suggested the screen zoom might be on but this is all set as normal.
I have an imac which works fine and the difference is quite noticable - on the G5 w/ LG screen there are light blue and pink 'halo's ' around gray areas, graphics have strange patchy dots like a screen print and as I am looking and typing into this forum the gradient shaded area that says 'Apple Discussions' has very poor quality shading with horizontal blue lines !
I've also tested the cables and made sure there are no interferences - this is really weird...
I will try another monitor when I get chance - thanks again.
Paul

DVD Movie is "lighter" than the M2v File - ?????

Hello Board,
I need help . . . . again!
I used the NTSC monitor to color and export the my short film and it looked FINE. Many of the scenes were dimmed (darkened Intentionally) intentionally to create and omnious effect.
I had to take the monitor back but everything seemed fine. I exported the project via Compressor - Best - 90 minute setting.
I watched the M2V on the computer and it looked great, so I imported the M2V into DVD pro and created a very basic DVD.
I burned the DVD pro project to DVD using Toast Titanium 6.
Now here's the twist. When I watched the DVD on TV, the images were significally ligter than in the M2V file and the DVD SP viewer.
I said ok, let me put the DVD into the computer and see if it looks different on the computer LCD and it did not, it was still lighter.
I then did a side by side comparison - with the M2V screen up on the left and the Mac DVD player screen up on the right. I went to the same frame in both and behold, the DVD version is noticable ligher. Things that are concealed by Shadow in the M2V can be seen in the DVD version.
Is it possible that something in the burn process did this. Or could it be that I saved the file a certain way in DVD SP and that did it?
I don't think it's an issue with Compressor, because why didn;t the M2V file look light on the computer.
Any insight would be greatly appreciated.
Thanks,
Lin

It's probably not a problem with Toast or DVD SP. It's the same old display and TV calibration issue that many complain about. Try this with Apple's DVD Player -- switch to an NTSC display profile and see what the DVD looks like then. However, the latter is not a "fix," just an example of how display gamma and calibration can affect results.
I'd suggest that Lin review the following tutorials on color and brightness adjustments:
http://www.signvideo.com/dv-black-levels-dvd-authoring-mpeg-2-part-1.htm
http://www.kenstone.net/fcphomepage/video_levelsnattress.html
You might also find some useful information in the following thread:
Waymen, "DVDSP 3 adds ten pounds of brightness on formatting!!!" #16, 03:08pm Sep 13, 2005 CDT<small><hr width="75%"><small>If this suggestion helps in any way, a confirmation or acknowledgment would be appreciated, since that would also help others who may be having the same difficulty. Do for others as you would have them help you.<center>Thanks for sharing, Waymen.</center></small>

First few moments of the video render as just a black screen - Premiere Elements 9

Hello,
I'm putting together a short, 8-second demo clip of a particular moment of my project in Premiere Elements 9. The section involves two clips which were taken seperately, but are cut in half with the crop function so that they both play on the screen at once. There are also some position and brightness adjustments of one of the clips to ensure they match up.
However, I have begun seeing strange behaviour when I attempt to render the clip and as so far I have not been able to get a usable copy. When rendered as a .wmv, one of the two clips is inexplicably cropped from the bottom up to about a quarter of the height of the scene, despite not being so in the editor. Furthermore, when rendered as an MPEG, the format I would prefer the file to be in, although I do not get the first problem I get an issue where the first 20-23 frames of the video refuse to play in an external video player. I tried both windows media player and VLC. Instead, the section of the video appears as either a black screen, a black screen with a white line on it, or, if the video timeline is scrolled back to the start, the last frame viewed. The music clip which accompanies the video however still plays during this section, and the error is not seen at all in the editor. Oddly, if one of the rendered files is imported back into Premiere Elements 9, and played within the error, the 20-or-so frames will indeed play. It seems it is only the Premiere Elements editor that can play these frames.
I'm utterly at a loss here. I don't mind too much not being able to export as .wmv, as it is not my first choice, but if anyone could help me with the MPEG rendering I would be very grateful.
The source files are AVCHD (.mts) files, at a resolution of 1440x1080. There is only one "clip change" at the point where the video becomes viewable again, but this is merely where I have split the same clip to perform a brightness change, as I have many times in the video elsewhere.
Thank you for any help,
Black.

Here's a screencap of my interface, although I blurred out the video preview section (it doesn't contain anything relevant anyway).
I would like to avoid posting a copy of the video if I can help it - I doubt my actors would be too pleased with me posting them around the internet.
As for the project settings, when I first imported the clips Elements informed me that my project preset was incorrect for the clips and automatically picked one to fit them, so I'm sure that that's all set up fine. All the footage is from the same camcorder, except for a splash screen image, of the correct resolution, which flashes up at the end.
I have used assets of the same format previously and with no isses.

Grayscale & Halftone Printing

I get very good results with RGB to CMYK conversions using Photoshop. I am satisfied with the final halftone reproduction compared to the image that I see on the monitor 99.9% of the time. I do not get the same results with grayscale images reproduced as halftones. While they are not true grayscale prints, the inkjet prints of grayscale images that I print from Photoshop always look good. However when I see the final publication 20-30% of the halftone images will look dull. Is there some way to better visualize with Photoshop what a grayscale image will look like when printed in halftone?

Mostly, the Gray Profile is the problem. Don't use just the convention
Gamma=2.2 or the guess DotGain=20%, but a reliable profile, which
is derived from the CMYK profile for the final process. For instance:
Edit > Color Settings > Load > Select U.S.WebCoatedSWAP
As a result you'll get the Gray Profile
Black Ink - U.S.WebCoated (SWOP) v2
Now choose this profile by View > Proof Setup > Custom and work
with Soft Proofing: View > Proof Colors.
Make the gray image either by Grayscale, followed by contrast and
brightness adjustments.
Or use Image > Adjustments > Channel Mixer, mode Monochrome.
I don't trust the grayscale workflow at all. InDesign doesn't honor
Gray Profiles (but it doesn't ruin the image, it just shows the result
sometimes wrong).
Therefore I would paste the optimized Grayscale into the K-channel
of an otherwise void CMYK image. Thus we get a compatible CMYK
file for the hopefully correctly assumed CMYK process.
One can find excellent advice in this book:
Dan Margulis , Photoshop Lab color.
http://www.amazon.de/s/ref=nb_sb_noss?__mk_de_DE=%C5M%C5Z%D5%D1&url=search-alias%3Daps&fie ld-keywords=Dan+Margulis+Lab&x=0&y=0
I'm still working with CS2. I would be glad if somebody could correct
me, if the guidelines should have changed meanwhile (e.g. InDesign's
sometimes wrong gray preview)
Best regards --Gernot Hoffmann

Brightness Adjustments

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