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+--- Thread: help with Transparent image (not transparent!) (/Thread-help-with-Transparent-image-not-transparent)
help with Transparent image (not transparent!) - magnus28 - 07-26-2025
hello all.
I used ChatGPT to draw an image of a dragon that I want to use to insert in a program on a blue background.
When I insert said image, a black "box" is inserted as a background.
When I open the image in GIMP it shows the alpha channel and the checkered background - indicating that the background is indeed transparent, but when I try to verify the image with a 'transparency checker program', it reports that the background pixels are 'opaque'. another program verifies that it's transparent with a "black transparency" color.
i've looked at various tutorials, selected the alpha channel, used the fuzzy select tool, and clicked on the 'checkered area' and hit delete, it does nothing!
i've been stuck on this issue for days!
can someone have a look at the image and confirm?
i'm desperate to fix this problem!
[attachment=13748]
RE: help with Transparent image (not transparent!) - rich2005 - 07-26-2025
Nice dragon. An alpha channel is a mask, which tells the program displaying the image what is transparent. How that is displayed depends on the program. Some use the conventional checker pattern, some use plain white (web browsers) and it looks like your program ignores it completely.
Something for you to try, use the eraser tool in anti-erase mode. That uncovers the "hidden" background which in your case is black. If you make an image in Gimp then when exported as a png the current background colour (often white but can be anything) is used.
[attachment=13749]
Which program are you using ? Are there any special requirements for images with transparent backgrounds ? Sometimes a property known as a clipping path is used but that is more associated with PhotoShop.
RE: help with Transparent image (not transparent!) - magnus28 - 07-26-2025
thanks for the reply
i've discovered the problem is with python tkinter
it can't display images with transparent backgrounds