with Magic Wand/Contiguous Selection Tool) and then erase everything inside the selection. So even rendering with white background and color-to-alphaing it later will be better than rendering with cyan and trying to remove it from the picture. It works ok with white (because it's neutral), but with other colors - not so much.
The color-to-alpha red tint happens because program somehow changes colors of all pixels depending on the chosen color. My result using Krita, and not using Color to Alpha -> You can also paint the transparency mask of the fill layer too. Paint the areas you do not want affected by selecting the mask, and paint darker colors to it.
To remove the remaining colors of the bottom layer, you can add desaturate filter mask and set to luminosity. Follow next step if you want some more removals of color. Invert the pasted Layer - Do not use adjustment mask or layerĪutolevel the pasted layer - Do not use adjustment mask or layerĬonvert the pasted layer into transparency mask of the fill layerĪdjust transparency mask of the fill layer.Īnd then change the blending mode of the layer to color. Then, separate the image using Image > Separate Image.Ĭopy Merge only the A* Channel and paste into the RGB Document.
#KRITA ONLINE ERASE A CERTAIN COLOR SOFTWARE#
You don't need another software to do this, but to do this in Krita.:Ĭopy that image into a new document, and convert to LAB.
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