Converting an image to create a negative

Hi. Relatively new to using Illustrator (approx 12 months) and use it mainly with students for generating files for our lasercutter. Am just wondering how you take an image (or a photo) and create a 'negative' of it. A number of students have images that have a lot of black on them (which would all be cut on the lasercutter) and so am looking at changing this to reduce cutting times. Thanks

Is this really a good idea? Surely it makes no difference in cutting time whether an image is negative or positive. The length of the lines where black meets white are identical.
The amount of black makes no difference either because on a mostly black image most of the black gets left behind, whereas on a mostly white image most of the black gets peeled off and discarded.

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How can I convert an image created in Photoshop into a format that Java's ImageIO library will take?

Hi all,
I've been trying to write an image resize tool to use the Lancoz resample algorithm to resize images to a high standard in Java. The library with the algorithm/filter in it is mortennobel's image scaling library and it takes a buffered image as an input and returns the resized image as desired. However the trouble I’m having is that the ImageIO library in Java, a standard library, which converts images given to its read method to buffered images doesn't accept certain images created in Photoshop and so it throws an exception. My library needs to be fully automated to process possible thousands of images at a time and so manually converting them by resaving them as JPEG's is really feasibly. Is there some way I can convert these images from Adobes Exif format to standard JFIF format? I've tried simple inserting the APP0 marker from a JFIF image in-between the SOI and APP1 marker but the ImageIO library still failed.
The above image is a screenshot of the binary in hex of one of the images that cause an Invalid Format exception when passed to ImageIO.
Any help you could offer me with this would be much appreciated.
Kind regards and thank you,
Alexei Blue
Science Warehouse.
NB: I previously posted this post in Developers but was told to post it in a Photoshop forum so apologies if this is the incorrect formum

The image scaling library does have a BiCubicFilter in it so I'll experiment around with them and see what happens. As for the imageIO library I think it accepts Exif image types, but still for some reason it just doesn't like Adobe Photoshop types. Maybe its the colour map it doesn't like I just can't seem to work out what's wrong which is slightly frustrating but looking round to see if I can find an answer

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I wish to create a negative from an image in iPhoto so I can print as if the negative. Is it possible to do this in iPhoto?

GraphicConverter, Pixelmator and Photoshop Elements for Mac all have the invert function.

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I need to turn AppleWorks Drawing documents into negatives. For example, I might have 6 scanned images on one A4 page. These are usually lineart eps images. I need to convert these so the images are white and the backround page is black. I can do this in Photoshop by pressing [Apple + I]. I have tried to save the AppleWorks file as a jpg (and other formats) in AppleWorks and then open them in PhotoShop to invert, but they open up in PhotoShop all jagged.
It is not practicable to convert the images in Photoshop to white images and past them on to a black background because:
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Intel iMac 20" Mac OS X (10.4.6)
Intel iMac 20" Mac OS X (10.4.6)
Intel iMac 20" Mac OS X (10.4.6)

There is no setting for inverting colours with my HP LaserJet 5MP. I have checked the settings when the print window comes up.
I have used AppleWorks very successfully for my purpose for around 12 years. I used it to set up a page to lay out rubber stamps for manufacture. Until recently I was printing the images as positives and using photographic film to make a negative, which is used for making rubber stamps. I now can save a lot of time by printing directly onto a new film, which acts as the negative, saving time messing around with chemicals etc. However, to do this I must print the image inverted.
The advantages of AppleWorks are
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4. It is very easy to move images around to optimize the number that can be packed on a sheet.
The problem with PhotoShop is
1. There is no grid, so images have to be sized before pasting into a document.
2. You will end up with multiple layers, which would be really confusing if I hada lot of designs on one page (I can have up to 100 small designs on one page).
3. I can copy and paste documents in AppleWorks from one document to another. If I copy an AppleWorks document into PhotoShop it goes really jagged (useless)
4. The transparent background does not seem to work on pasting into a document.
In an ideal world I would have
a) a plugin for AppleWorks to invert the image or
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Intel iMac 20" Mac OS X (10.4.6)
Intel iMac 20" Mac OS X (10.4.6)
Intel iMac 20" Mac OS X (10.4.6)
Intel iMac 20" Mac OS X (10.4.6)
Intel iMac 20" Mac OS X (10.4.6)
Intel iMac 20" Mac OS X (10.4.6)

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Hello,
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- Krishna

There's also jimi, at http://java.sun.com/products/jimi/
You can do something like:
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[\code]

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try
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Fixed that. I got a new problem.
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How do i convert an image object to a byte array ?

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How do I convert raw images with side car to Dng and

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If the images are already in your catalog you can select them then choose Convert Photos to DNG from the Library menu. You'll be given the option of deleting the original raw files. Either way, Lr will only display the newly created DNG files.
The alternative, which is better suited to images not already in the catalog is to use the Adobe DNG Converter

IGS COnverted BMP Image upload problem in SE78

HI Friends,
I Converted the JPEG image into BMP ormat by using IGS. It is converting properly. i am able to see the BMP image. When i am trying to upload it through the SE78 i am getting the short dump.
If convert it manually, i am able to upload the image. i did not get the any difference between these two including file size, width and height.
I attached the shortdump and converted image file as an attachment. Can anyone give me inputs where i am missing the target.
Runtime error : COMPUTE_INT_TIMES_OVERFLOW
Exception : CX_SY_ARITHMETIC_OVERFLOW
Thanks ,
Srinivas Bhavanam

Hi Oisin,
Sorry for the Late Reply. I am using IGS 6.40 with solaris system.
If i am converting the image from my desktop i am getting 96DPI resolution. Where as if i am doing it from IGS i am getting 30682172 DPI resolution.
I am using SAP 4.7. Is it the latest patch level or latest IGS supported.
Short Dump :
Runtime Error          COMPUTE_INT_TIMES_OVERFLOW
Exception              CX_SY_ARITHMETIC_OVERFLOW
       Occurred on     03.03.2010 at   11:04:30
Whole number overflow on multiplication.
What happened?
Error in ABAP application program.
The current ABAP program "SAPLSTXBITMAPS" had to be terminated because one of
the
statements could not be executed.
This is probably due to an error in the ABAP program.
What can you do?
Print out the error message (using the "Print" function)
and make a note of the actions and input that caused the
error.
To resolve the problem, contact your SAP system administrator.
You can use transaction ST22 (ABAP Dump Analysis) to view and administer
termination messages, especially those beyond their normal deletion
date.
Error analysis
An exception occurred. This exception is dealt with in more detail below
. The exception, which is assigned to the class 'CX_SY_ARITHMETIC_OVERFLOW',
was neither
caught nor passed along using a RAISING clause, in the procedure
"FILL_BMFILE_FROM_BMP" "(FORM)"
Since the caller of the procedure could not have expected this exception
to occur, the running program was terminated.
The reason for the exception is:
In the current program "SAPLSTXBITMAPS", multiplying the numbers 1207959552 and
100 (using the operation * or 'MULTIPLY') resulted in a value
greater than 2147483647 or smaller than -2147483648. This
results in a whole number overflow.
How to correct the error
The exception must either be prevented, caught within the procedure
"FILL_BMFILE_FROM_BMP"
"(FORM)", or declared in the procedure's RAISING clause.
To prevent the exception, note the following:
You may be able to split the process into separate components, so that
the values generated are smaller.
If the error occurred in one of your own programs or in an SAP program
that you modified, try to correct it yourself.
If you cannot solve the problem yourself, please send the
following documents to SAP:
1. A hard copy print describing the problem.
   To obtain this, select the "Print" function on the current screen.
2. A suitable hardcopy prinout of the system log.
   To obtain this, call the system log with Transaction SM21
   and select the "Print" function to print out the relevant
   part.
3. If the programs are your own programs or modified SAP programs,
   supply the source code.
   To do this, you can either use the "PRINT" command in the editor or
   print the programs using the report RSINCL00.
4. Details regarding the conditions under which the error occurred
   or which actions and input led to the error.
System environment
SAP Release.............. "620"
Application server....... "EWR0R3DEV002"
Network address.......... "10.20.32.13"
Operating system......... "SunOS"
Release.................. "5.9"
Hardware type............ "sun4u"
Character length......... 16 Bits
Pointer length........... 64 Bits
Work process number...... 0
Short dump setting....... "full"
Database server.......... "EWR0R3DEV002"
Database type............ "ORACLE"
Database name............ "I07"
Database owner........... "SAPRGG"
Character set............ "C"
SAP kernel............... "640"
Created on............... "Mar 9 2009 21:04:19"
Created in............... "SunOS 5.8 Generic_117350-38 sun4u"
Database version......... "OCI_920 "
Patch level.............. "274"
Patch text............... " "
Supported environment....
Database................. "ORACLE 9.2.0.., ORACLE 10.1.0.., ORACLE
10.2.0.."
SAP database version..... "640"
Operating system......... "SunOS 5.8, SunOS 5.9, SunOS 5.10"
User, transaction...
Client.............. 999
User................ "SREDDY"
Language key........ "E"
Transaction......... "SE78 "
Program............. "SAPLSTXBITMAPS"
Screen.............. "SAPLSTXBITMAPS 4001"
Screen line......... 8
Information on where terminated
The termination occurred in the ABAP program "SAPLSTXBITMAPS" in
"FILL_BMFILE_FROM_BMP".
The main program was "SAPMSSCH ".
The termination occurred in line 1959 of the source code of the (Include)
program "LSTXBITMAPSF03"
of the source code of program "LSTXBITMAPSF03" (when calling the editor 19590).
Processing was terminated because the exception "CX_SY_ARITHMETIC_OVERFLOW"
occurred in the
procedure "FILL_BMFILE_FROM_BMP" "(FORM)" but was not handled locally, not
declared in the
RAISING clause of the procedure.
The procedure is in the program "SAPLSTXBITMAPS ". Its source code starts in
line 1843
of the (Include) program "LSTXBITMAPSF03 ".
Source code extract
019290     endcase.
019300   * compression
019310     perform bmptab_getdword_ofs tables bitmap_file
019320                                 using ofs bmp_compression.
019330     case bmp_compression.
019340       when c_bmp_compr_rgb.              "BI_RGB, uncompressed
019350       when c_bmp_compr_rle8. "BI_RLE8, 256 colors colormap, rle encoding
019360       when c_bmp_compr_rle4. "BI_RLE8, 16 colors colormap, rle encoding
019370       when others. message e872 raising bmperr_unsup_compression.
019380     endcase.
019390   * size of image
019400     perform bmptab_getdword_ofs tables bitmap_file
019410                                 using ofs bmp_sizeimage.
019420   * pix per meter X
019430     perform bmptab_getlong_ofs tables bitmap_file
019440                             using ofs bmp_xpelspermeter.
019450   * pix per meter Y
019460     perform bmptab_getlong_ofs tables bitmap_file
019470                             using ofs bmp_ypelspermeter.
019480   * colors used
019490     perform bmptab_getdword_ofs tables bitmap_file
019500                                 using ofs word.
019510   * colors important
019520     perform bmptab_getdword_ofs tables bitmap_file
019530                                 using ofs word.
019540     ofs_rgbquad = ofs_bitmapinfoheader + bmp_bisize.
019550   * now we have OFS_RGBQUAD    -> color table
019560   *             OFS_BITMAPDATA -> bitmap bytes
019570     otf_bminfo-new_rd_format = c_false.
019580     otf_bminfo-is_resident   = c_false.
>     otf_bminfo-dpi = ( bmp_xpelspermeter * 100 ) / 3937.
019600     perform bmp_adjust_dpi using otf_bminfo-dpi.
019610     otf_bminfo-w_pix = bmp_width.
019620     otf_bminfo-h_pix = abs( bmp_height ).
019630     otf_bminfo-w_tw = ( 1440 * otf_bminfo-w_pix ) / otf_bminfo-dpi.
019640     otf_bminfo-h_tw = ( 1440 * otf_bminfo-h_pix ) / otf_bminfo-dpi.
019650     case bmp_bitcount.
019660       when 1.
019670         otf_bminfo-bitsperpix = 1.
019680         otf_bminfo-bytes_per_row = otf_bminfo-w_pix div 8.
019690         rest = otf_bminfo-w_pix mod 8.
019700       when 4.
019710         otf_bminfo-bitsperpix = 4.
019720         otf_bminfo-bytes_per_row = otf_bminfo-w_pix div 2.
019730         rest = otf_bminfo-w_pix mod 2.
019740       when 8.
019750         otf_bminfo-bitsperpix = 8.
019760         otf_bminfo-bytes_per_row = otf_bminfo-w_pix.
019770         rest = 0.
019780       when 24.
Thanks & Regards,
Srinivas Bhavanam

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Thanks,
Barton

Hi,
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http://stackoverflow.com/questions/129972/convert-an-image-to-xaml
http://stackoverflow.com/questions/15082716/can-we-convert-an-image-to-xaml-using-expression-blend
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Maybe an existing computer vision [-able] component loke opencv can help a lot...
Edit: I just did a google lookup and found eg this:
http://www.cs.ucla.edu/~dt/theses/vasilescu-thesis.pdf
I havent read it so far, so I cannot say, if its what you need, but title and a quick view into looks promising/interesting.
Regards,
Thorsten

How do I open RAW images from DSC_RX100M3? I downloaded Adobe DNG converter 8.4, but could not convert the images?

How do I open RAW images from DSC_RX100M3? I downloaded Adobe DNG converter 8.4, but could not convert the images?

Small correction to what SSprengel wrote...
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Photoshop Help | Digital Negative (DNG)
-Noel

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I have captured a frame from a video clip as an Image, and want to send this through a series of filters I have programmed.
These filters use JAI and so take PlanarImages as inputs.
I therefore wouldlike to convert an Image to a PlanarImage. Any suggests would be much appreciated.
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I would split the image into colour bands after you get it into the
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Is the code below correct to convert colour images to grayscale images in Java?
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JPEGImageDecoder decoder=JPEGCodec.createJPEGDecoder(new FileInputStream(sourceName));
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I am not sure i understand what is the problem exactly.
Structure of DataBuffer is described by SampleModel used by same Raster
object. E.g. it might be 1 byte per xipex or 4 bytes per pixel.
In your example convertToGrayscale saves images to file as JPEG and
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Technically, if you just need level of grey you may simply
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Also, instead of ColorConverOp you may dimply create output image of
grayscale type and draw your color input image with drawImage().
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