I am a little confused in converting images from uint16 to uint8. There is a matlab function im2uint8 that should do the job, but I would like to avoid using the toolbox and convert using uint8 command. The conversion is done as follows:
u16 = uint16([126 127 128 129 130])
u8 = uint8(u16/256)
u8_2 = im2uint8(u16)
However, I get some discrepancies between the two conversions.
For uint16 value of 128, the im2uint8 function gives zero, while the uint8 command gives 1. To my understanding it should be 1, but since Matlab gives it as 0, it made me confused. What am I missing here?