User Guide

GNU Image Manipulation Program
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15.11.9.2 Starting filter
You can find this filter from the image menu through Filters → Artistic → Photocopy.
15.11.9.3 Options
Figure 15.194: ‘Photocopy’ filter options
Mask radius This parameter controls the size of the pixel neighbourhood over which the average intensity is computed and then
compared to each pixel in the neighborhood to decide whether or not to darken it. Large values result in very thick black
areas bordering the regions of white and much less detail for black areas. Small values result in less toner overall and more
details everywhere.
Sharpness With this option, you can set photocopy sharpness, from 0.0 to 1.0.
Percent black This parameter controls the amount of black color added to the image. Small values make the blend from color
regions to blackened areas smoother and dark lines themselves thinner and less noticeable. Larger values make the lines
thicker, darker and sharper. The maximum value makes the lines aliased. The best, most natural results are usually achieved
with an intermediate value. Values vary from 0.0 to 1.0.
Percent White This parameter increases white pixels percentage.