Certified Professional Photographer (CPP) Practice Exam

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Prepare for the Certified Professional Photographer Exam. Study with flashcards and multiple choice questions, each with hints and explanations. Get ready for your certification!

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What does a value of 255 on a histogram indicate?

Complete shadow
Mid-tone
Pure white
Color balance

The correct answer is: Pure white

A value of 255 on a histogram indicates pure white in digital imaging. The histogram is a graphical representation of the tonal values of an image, showing the distribution of shadows (dark values) on the left side, mid-tones in the center, and highlights (light values) on the right side. The scale typically ranges from 0 to 255, where 0 represents complete black, and 255 signifies pure white. Therefore, when a pixel value reaches 255, it means that the area in question has the maximum brightness level that can be represented, showcasing a point of pure white without any color or detail. Understanding this can help photographers ensure that their images maintain proper exposure and detail in the brightest areas without losing important highlights.