Red color enhancement

[OmarSinno]

So I wrote this code and my goal is to increase the red intensity by 50% in every pixel, help?

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from PIL import Image im= Image.open('monkey.jpg') img = im.copy() width, height = img.size red, green, blue = (0,0,0) for i in range(width):     for j in range(height):         pixel = img.getpixel((i,j))         red += pixel[0]         green += pixel[1]         blue += pixel[2]         newpixel = img.putpixel((i,j),(red*2,green,blue))

[heiner55]

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#python from PIL import Image   img  = Image.open('monkey.jpg') width, height = img.size   for i in range(width):     for j in range(height):         pixel = img.getpixel((i,j))         red   = pixel[0]         green = pixel[1]         blue  = pixel[2]         newpixel = img.putpixel((i,j), (red*2,green,blue))   img.save("test.jpg", "jpeg")

[j.crater]

Doesnt red*2 increase red intensity by 100%?
I would try with red*1.5 to gain 50% increase.