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[Octave-bug-tracker] [bug #41584] .bmp / .png display error for saturate
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From: |
Carnë Draug |
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Subject: |
[Octave-bug-tracker] [bug #41584] .bmp / .png display error for saturated RGB image. |
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Date: |
Tue, 14 Jul 2015 10:35:40 +0000 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Firefox/31.0 Iceweasel/31.8.0 |
Follow-up Comment #10, bug #41584 (project octave):
Vallery said on Comment #9:
> if all channels are saturated or zero then imread couldn't be blamed for
returning damaging data because of the logical matrix.
Of course it can. It is part of the file information if the data is 8 bit, 16
bit, signed or unsigned, boolean, floating point, or something else. The
actual pixel values of the image are irrelevant. Unfortunately, this
information is not available (at least not in a reliable way) to us when using
GraphicsMagick (but would be if we used the format specific libraries).
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