What's wrong with this RGB to XYZ color space conversion algorithm?

Question

My goal is to convert an RGB pixel into CIELab color space for some special calculations only possible in CIELab. For this, I must convert RGB to XYZ first, which is the rea

Answer 1

*inR/255 is an integer division. 1/255 is zero. Write *inR/255.0 instead.