photo -> trace: Colors => upper layer
photo -> trace: brightness cutoff -> lower layer
photo -> trace: Colors => upper layer
photo -> trace: brightness cutoff -> lower layer
Image > Mode > Grayscale
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B&W
1: Change the document color mode to Grayscale (Image > Mode > Grayscale)
or Remove saturation from the image’s colors (Colors > Saturation, set to 0)
2: Apply the Threshold filter
Colors > Threshold
3. Colors > Curves
ctrl+f
Find: fill:#8b723f
Find
click left bottom corner Fill: color box
change the alpha to 0