I have developed the algorithm and also the test bench that read pixel values from text file and writes the resulted pixel values in text file. Now the problem is my code reads tha data correctly but it is writing only value 762 in the text file 128*128 times. Kindly help me out

I have developed the algo and the test bench to read data from text file . Data is being read correctly but the value that is being written is incorrect.
Can you help me out please I need it urgently Reply asap