把黑色改变为别的颜色
因为黑色的RGB是(0,0,0),所以要反色下才能改
如果要改白色就不用反了
b = Bitmap.new "E:/zh99998/Documents/Tencent Files/276169442/FileRecv/1.png"
b.width.times do |x|
b.height.times do |y|
color = b.get_pixel(x, y)
color.red = 255 - color.red
color.green = 255 - color.green
color.blue = 255 - color.blue
#================
color.red *= 0.5
#================
color.red = 255 - color.red
color.green = 255 - color.green
color.blue = 255 - color.blue
b.set_pixel(x, y, color)
end
end
s = Sprite.new
s.bitmap = b
Graphics.wait 100