07-21-2022, 08:33 AM
Are you happy with the procedure for creating screenprinting masks in the first place ? For photo-emulsion masks the aim is a black shape on a white background.
You have your decomposed image, with CMYK layers.
Invert gives a grey foreground and a white background.
For screenprinting using photo-emulsion material you need a black and white mask. Various ways to get that, Colours -> Threshold on each layer is one way.
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To see what it might look like printed using emulated screenprinting methods.
This is the bit you are missing, you might as well do it now. Decompose gives a greyscale image, change it to RGB Image -> Mode -> RGB
Remove the white using Colours -> Color-to-Alpha
Lock the alpha channel (the transparency) using the alpha lock top of the layers dock for each layer.
Bucket fill using the appropriate colour. (note your cyan is not cyan. Cyan is 0% red / 100% green / 100% blue )
Your photograph is not going to look wonderful, lots of solid blocks of colour.
I have the feeling you are going round in circles.
You have your decomposed image, with CMYK layers.
Invert gives a grey foreground and a white background.
For screenprinting using photo-emulsion material you need a black and white mask. Various ways to get that, Colours -> Threshold on each layer is one way.
--------------------
To see what it might look like printed using emulated screenprinting methods.
This is the bit you are missing, you might as well do it now. Decompose gives a greyscale image, change it to RGB Image -> Mode -> RGB
Remove the white using Colours -> Color-to-Alpha
Lock the alpha channel (the transparency) using the alpha lock top of the layers dock for each layer.
Bucket fill using the appropriate colour. (note your cyan is not cyan. Cyan is 0% red / 100% green / 100% blue )
Your photograph is not going to look wonderful, lots of solid blocks of colour.
I have the feeling you are going round in circles.