Replacing Colour Of An Image

Question

I am trying to replace the black colours of a picture with white, and vice versa. This is actually so my OCR code can read it on white backgrounds better. It\'s currently ge

Answer 1

if your image is B&W, it is very easy in OpenCV:

// bmp is your bitmap
var inverted = (255 - bitmap.ToMat()).ToMat().
  .ToBitamp() // or
  .ToWriteableBitmap() // or
  .ToBitmapSource()

OpenCV can be a little overkill if this in your only manipulation in the whole app