Can you please tell me how I can change some colour of a car (for example red , blue) in to a white in photoshop ? Example: http://www.ferrarichat.com/forum/showthread.php?t=90269 Reg Tad
white is a bad example, because it's very difficult to obtain a realistic result. Other colors are easier, though. Open our pic Layer>Duplicate the layer Layer>Add Layer Mask>Hide All Make the original layer (on the bottom) invisible (the little eye thing) Now the picture should be all blank Make sure you are on the mask (the rectangle next to the layer on top) Take the brush, set it to 60pxl and soft edges, white in color, and paint the body of the car (or whatever you want to change the color of). If you mess up, simply paint in black and it will be hidden again ... get it? in the mask, what you paint in white will be visible, and black will be hidden. Downsize the brush until you get the desired precision. Make the underlying layer visible again Make sure you are on the top layer (not the mask, the layer, the "rectangle" on the left). Now it's all trial and error ... Image>Adjustments>Hue/Saturation Image>Adjustments>Brightness/Contrast etc You can also use a solid color (just brush it all over the top layer), and change the blending of the top layer to Overlay, or Multiply or Screen IMO, the picture you posted was just done by playing with the hue, no blending games ...
You try meticulously tracing the body of the car with the pen/path tool to isolate it. Then copy/paste it onto its own layer. I would then duplicate the layer a couple of times too just to have them for trial/error purposes. The I would lock the layer and try using the Saturation function (Image menu/Adjustments/Hue Saturations...) to remove all the color. Then I would use the Contrast function to wipe out most of the gray (converted from color) areas.
