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Author Topic: images importing with changes to colour and layers  (Read 4104 times)

Karela

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Re: images importing with changes to colour and layers
« Reply #15 on: May 23, 2014, 06:41:42 am »
I am not so familiar on how alpha channels work, I followed an online tutorial for smoothing edges and this was one of the directions (the making of an alpha channel, not the cutting off the bottom part of the image :)).

The gradient layer is/was on top of the other ones, though (I flattened the image when I saved it as a tiff) and the image shows the gradient layer.

What would my options be?

1) Use the jpeg file since it shows the gradient?
2) Add a gradient in Scribus?
3) Attempt to expand the alpha channel to include the bottom half?

utnik

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Re: images importing with changes to colour and layers
« Reply #16 on: May 23, 2014, 09:23:39 am »
hi karela

editing the alpha channel is a good option.
as long as it's the background of your file, you could delete the alpha channel – you don't really need it.

utnik

Nermander

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Re: images importing with changes to colour and layers
« Reply #17 on: May 23, 2014, 10:58:23 am »
The reason the JPEG works is that JPEG don't support transparency (and alpha channel is transparency).

So the JPEG only contains, R, G and B, while the TIFF contains R, G, B and A.


A very good tips when something looks different in two programs: Try with a third program!

Karela

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Re: images importing with changes to colour and layers
« Reply #18 on: May 27, 2014, 06:27:20 pm »
Alpha channel deleted and problem solved. Thanks so much for your help!

 

palmate