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PNG image is different from Chrome, FireFox and Safari

When I display the following PNG in chrome, safari and firefox, I see the differences.

http://bobcravens.com/demos/temp/logo.png

Here's a screenshot (left to right) of Chrome, Safari, FireFox (all on Mac).

Screenshothot

I am sure it will be something simple (and I probably should know), but I could not determine the root cause.

Thanks for any help.

Bean

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2 answers

It seems that Safari is ignoring the gAMA block in this PNG. Extracting a piece of gAMA from a PNG file, I get Firefox showing the image in the same way as Safari in the screenshot.

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This is almost certainly a gamma problem and / or an alpha channel problem.

Check browser support.

http://entropymine.com/jason/testbed/gamma/

http://entropymine.com/jason/testbed/pngtrans/

http://entropymine.com/jason/testbed/alphagamma/

: " " (bmp gif) png.

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