Telika katafera mono ws epilaxon na bgw sto metaptuxiako an kai auto einai kati polu kalo mias kai ekana aithsh sto plhroforikhs. Dustuxws sumplhrwthike to tmhma anyway.
Well i dont know what may cause that effect. Maybe you are working in CMYK or something like that? probably its due to compression but still not sure.
Keep up the study is very good