![]() ![]() Also the user can make his own patterns by using the pattern generator and custom pattern images. This way the range of possible results can grow as new generators are added to Krita. The filter uses the fill layer generators to create the screen (pattern) image instead of using a predefined set of patterns and options. The halftoning process works by making a pattern image (commonly named screen) that is combined with the original image in a specific way. When the selected mode is Independent Channels, multiple tabs for the different channels appear to let the user choose different options for each one otherwise no tabs for the channels appear and there is only one set of options. This is useful to add texture to the smooth semi-transparent borders of a layer. With this option the halftoning is applied only to the alpha channel (you may see no change when all the pixels of the image are fully opaque). This allows applying the halftoning to each channel of the image independently, potentially with different parameters, giving an effect similar to the one in colored magazine images. The resulting effect is like the one used in black and white newspaper images. In this mode the image is first converted to grayscale and then the halftoning is applied. The halftone filter tries to replicate the continuous-tone of the original image through the use of simple shapes that vary in size. The artistic filter are characterised by taking an input, and doing a deformation on them.
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