Images passed to your application are not always of the same size as your templates. To compare them you might need to up scale or down scale them to the template size. It is preferred that when comparing you check the size of the template to b

Matlab codes for decimation, interpolation, histogram equalization, DCT, DWT. Matlab code for Hamming code generation and error correction. Sample C codes for DSP downsampling and upsampling. They all include output and graphs.