Possible Duplicate:
Selective Color of image
I am trying to do something with image processing. I am trying to open an image and then user will select a part of the image. I am finding the average of this selected part as selected color. Now user will select another color from a palette of colors and I am trying to change the color of the image with the new selected one.
To be more concrete. If in an image with apples and oranges user selectes a part from an orange then I have to change the color of oranges to the new color. So, every orange from now on will have another color.
I tried this with c#, by converting RGB to HSV and then I was trying to keep the saturation and brightenes of original image and changing just hue value but it is not working properly.
Any idea about this problem ?
