Which filter should I use to remove shadow from a bitmap

chrisbatt / AndroidFastImageProcessing

A framework for speeding up image processing on android devices by taking advantage of shaders on the GPU.

MIT License

285 stars 118 forks source link

Which filter should I use to remove shadow from a bitmap #27

Open w2ji opened 9 years ago

w2ji commented 9 years ago

I took an image of a file and would like to process it to black and white text image. However, I'm having problem filtering out the shadow, would be great if you can give me a hint. Also is there a way to apply a black and white image filter as well? Thx for the great library!