LCH to RGB conversion

How do i create an image in LCH color space and convert it to RGB through Lab color space?

if true
C_lch2lab= makecform('lch2lab');
im_lab=applycform(im_lch,C_lch2lab);
C_lab2srgb= makecform('lab2srgb');
im_rgb=applycform(im_lab,C_lab2srgb);
end

[John D'Errico]

Since you already know how to do the transformation, then why are you asking? My guess is your question is to understand how those tools work.

lch2lab is just a conversion from cylindrical to cartesian coordinates.

lab2srgb is a conversion from lab to xyz (easy to find the equations online) then a conversion into srgb (also findable online).

Answer 1

[MathReallyWorks]

Hello danielle dan,

Have a look at this: LCH to RGB Conversion Tools

[DGM]

That link no longer works because I deleted that FEX submission when I consolidated things a while back:

https://www.mathworks.com/matlabcentral/fileexchange/53354-colorspace-conversion-tools

This offers bidirectional tools between sRGB and:

HSI

HSL

HSY/HSYp

HuSL/HuSLp

LCH ( LUV, LAB, SRLAB2, OKLAB, YPbPr)

as well as a boundary chroma calculation tool for the cylindrical models.