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How does matlab hide a picture in another picture? The specific requirements are as follows:
I found it online, although I remember it seems to be a function of matlab.

Function rgbtocmy () {

my cyan = 255-myred;

my magenta = 255-my green;

my yellow = 255-my blue;

correct cmyk();

}

// CMY to RGB color conversion

Function cmytorgb () {

myred = 255-my cyan;

my green = 255-my magenta;

my blue = 255-my yellow;

correct cmyk();

}

// CMYK color correction

Function correctCMYK () {

If (rep_v! = "ERR") {

var temp = math . min(math . min(my cyan,mymagenta),my yellow);

if (temp! = 0) {

temp 2 = math . round((rep _ v/ 100)* temp);

rep _ k = math . round((temp 2/255)* 100);

rep _ c = math . round((my cyan-temp 2)/255)* 100);

rep _ m = math . round((my magenta-temp 2)/255)* 100);

rep _ y = math . round((my yellow-temp 2)/255)* 100);

} Otherwise {

rep _ c = math . round((my cyan/255)* 100);

rep _ m = math . round((my magenta/255)* 100);

rep _ y = math . round((my yellow/255)* 100);

rep _ k = 0;

}

}