How to increase line thickness in an existing raster image?
I received an image with colored lines that I need to include in a report. However, the image will be scaled down and the lines will be thin making it hard to see what color they are (especially in print).
This is a sample of the image. It doesn't make sense on its own, but it's just to show what my source image is.
Can I somehow increase the thickness of these lines? Somehow make them bleed to the surrounding area in their original colour? The latter aspect is important so a glow (of one colour) is not going to cut it.
If other software is more suitable to do this, please do share. Photoshop was just my first idea.
Extract the text to its own layer.
Then on the line layer run
Filter > Other... > Minimum which will allow you to add pixels to the line while retaining the colors.
(Minimum adds pixels, Maximum subtracts them)