4% color change by 1 during hsv Rgb conversions

[WyattLiu]

When I wrote hue shift, I tested by converting from rgb to hsv then convert back, however, I noticed about 4% pixels, each pixel changes by 1 i.e. 134->135, this is probably due to accuracy issue of double and math libs, should I worry about this?

[rin-23]

this is fine