Sharpen bitmap using Convolution

The previous exercise " Blur bitmap using Convolution ". By changing the matrix of Convolution class, we can use it to sharpen bit...

Create upside down bitmap with matrix

To create upside down bitmap with matrix: Matrix matrixUpsideDown = new Matrix(); matrixUpsideDown.preScale(1.0f, -1.0f); bit...

Something about processing images in Android

I will do some trial experience about image in Android programming. The list here will be updated once posted. Combine bitmap side-by-side M...