How adjuting my monitor?
The image above shows 17 brightness levels from black (value of 0) to 255 in white (sum of the tree primary colors), red, green and blue with a step value of 15. . Your must easily see a difference in brightness between each step. If this is not the case you should adjust the brightness and contrast of your monitor. Like this you can see pictures like they were intended to be seen. The Macbeth color chart is also shown
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