pw.getColor(x,y)

Description :

• Return the pixel data in specific position

Parameters :

• pw.getPixel(x,y)
• pw.getPixel(layerId,x,y)
• x,y should be integers.
• layerId should be an integer, -1 means the input layer, -2 means the output layer, 0~9 means the layer parameter.

Return :

• Alpha, Red, Green, Blue. All are floats in range 0~1. (No clamp)

Sample code :

• Here is a sample code that calculates the average value of A,R,G,B channels.

pw.in2out()
local sumA, sumR,sumG,sumB
sumA = 0
sumR = 0
sumG = 0
sumB = 0
local A,R,G,B 
local total = width * height
for y=0,height do
    for x=0,width do
        A,R,G,B = pw.getColor(x,y)
        sumA = sumA + A
        sumR = sumR + R
        sumG = sumG + G
        sumB = sumB + B
    end
end
pw.report("Average alpha value is : " .. (sumA/total) .."\nAverage red value is : " .. (sumR/total).."\nAverage green value is : " .. (sumG/total).."\nAverage blue value is : " .. (sumB/total))