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Looks like your fixes for (1) and (3) work in the 20091110 snapshot make GM work like IM does. I didn't do any thorough testing. I only tested output and input of an image with a map of "RGBA". Thanks for getting it fixed quickly!
I agree with the approach that you describe regarding gamma. My point is that IM provides a mechanism which can apply the gamma or inverse gamma to an entire...
2009-11-12 04:28:14 UTC in GraphicsMagick
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Again, I agree. A 1/2 value would appear to be about 1/2 brightness to an observer. But, human perception of brightness is not linear.
If you want something to actually be 50% intensity (as in the physical amount of light coming off of the monitor---taking the human out of the equation), a value of .5 does not produce 50% intensity.
2009-11-11 20:59:38 UTC in GraphicsMagick
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Ok. I will try it out when I get a chance.
I'm not disputing what you are stating regarding RGB/sRGB. I agree that an image which was created for an sRGB display does not require any changes to be displayed on an sRGB display. My point is simply this: What if you want to create a synthetic solid color image which is to be displays as 50% intensity on an sRGB screen? Due to gamma, storing...
2009-11-11 17:37:03 UTC in GraphicsMagick
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Thanks for the quick reply. I'm glad that issues (1) and (3) are getting resolved.
About (2): I understand the concern about breaking compatibility code when making such changes. I dug back into a couple old releases of IM and found that that they did indeed previously define sRGBColorspace as it is currently defined in GM. I didn't figure out when exactly the change happened, but IM...
2009-11-11 16:15:31 UTC in GraphicsMagick
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I have some C code which reads and writes to image files using imagemagick. I've recently tried to make the same code also work with graphicsmagick. I've run into three issues that I've had to work around to make my code work the same way with both gm and im:
1) In ConsituteImage/DispatchImage, 'A' in the "map" parameter refers to an alpha component. In IM, setting an 'A' component to zero...
2009-11-10 17:46:53 UTC in GraphicsMagick
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skuhl committed patchset 131 of module pal to the pal calendar CVS repository, changing 1 files.
2006-09-18 04:45:58 UTC in pal calendar
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skuhl committed patchset 130 of module pal to the pal calendar CVS repository, changing 1 files.
2006-09-18 04:04:46 UTC in pal calendar
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skuhl committed patchset 129 of module pal to the pal calendar CVS repository, changing 1 files.
2006-09-18 04:02:54 UTC in pal calendar
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skuhl committed patchset 128 of module pal to the pal calendar CVS repository, changing 1 files.
2006-09-18 04:01:30 UTC in pal calendar
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skuhl committed patchset 127 of module pal to the pal calendar CVS repository, changing 12 files.
2006-09-18 03:59:39 UTC in pal calendar
