[bug] Automatic crop sometimes work incorrectly

[sd_snatcher]

The automatic crop action sometimes does the crop the way it wants to do, and not the way the user requested.

Steps to reproduce the problem:


1) Use the attached "Reserve 12.png" image
2) In the Actions tab, add the "Automatic Crop"
3) Use the following parameters:
- Color of pixel at: Bottom Left

But then, instead of cropping the huge red bar at the bottom, it crops the top yellow bar that is part of the image. Selecting "bottom-right" doesn't solve the problem either.

[xnview]

Thanks to your detailed description I can reproduce the problem.

[sd_snatcher]

The problem still happens with some indexed images.

Repeat the same steps listed for the 1st image in this thread with the MSCHOO25.GIF attached here.

[xnview]

The problem still happens with some indexed images.

Repeat the same steps listed for the 1st image in this thread with the MSCHOO25.GIF attached here.

But in this picture, there is no area with only 1 color

[sd_snatcher]

But in this picture, there is no area with only 1 color

There's a 512x12 black bar at the bottom. Shouldn't it be eliminated?

[xnview]

right, the problem is that automatic crop use colormap index, and there 2 index (0, 1) with black color