Rank: Member
Groups: Member
Joined: 5/4/2006(UTC)
Posts: 17
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I need to prepare images for news paper publishing, but have a problem when when using Graphics Mill to convert RGB to grayscale with color management turned on (RGB -> CMYK works perfectly). When using Photoshop to convert RGB (Adobe RGB 1998) to grayscale (ISOnewspaper26v4_gr or fargpressen_v3_grey) the image looks the way it should. Using Graphics Mill to do the same thing gives me a very dark image (see attachment). Is there a problem with my code, the ICM files or Graphics Mill itself? Any suggestions or solutions would be greatly appreciated. My code: Code:// Open image
Bitmap gmTest = new Bitmap(Server.MapPath("/bmc.tmp/Stones.jpg"));
// Turn color management on
gmTest.ColorManagement.ColorManagementEnabled = true;
// Set image ICC profile if it's not embedded
if (gmTest.ColorProfile == null && gmTest.IsRgb)
gmTest.ColorProfile = new ColorProfile(Server.MapPath("/bmc.dat/tr3/ColorProfiles/sRGB IEC61966-21.icm"));
// Set destination ICC profile
gmTest.ColorManagement.GrayScaleColorProfile = new ColorProfile(Server.MapPath("/bmc.dat/tr3/ColorProfiles/ISOnewspaper26v4_gr.icm"));
// Set transformation intent
gmTest.ColorManagement.TransformationIntent = Aurigma.GraphicsMill.Transforms.ColorTransformationIntent.Perceptual;
// Convert and save
gmTest.ColorManagement.ConvertToContinuous(ColorSpace.GrayScale, false, false);
gmTest.Save(Server.MapPath("/bmc.tmp/Gray.jpg"), new JpegEncoderOptions(90, false));
// Clean up
gmTest.Dispose();
Thanks Mattias Malm Edit: There was a problem with the attachements, so here is an external link to the files used: [URL was removed] [Image was removed] Edited by user Friday, December 18, 2009 8:32:38 PM(UTC)
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Rank: Advanced Member
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Joined: 7/28/2003(UTC)
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Hello Mattias,
We are checking the problem and will let you know soon. |
Best regards,
Fedor Skvortsov
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Rank: Advanced Member
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Hello,
Could you upload archive with color profiles once again? It seems the current file is corrupted. |
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