Virtual Labs

Point Operations

1. In windowing, gray values falling beyond the upper range of the window are

a: Reduced to zero b: Raised to 255 c: Not changed d: Reduced by half

2. Which of the following will produce the negative image of given input image

a: Add each pixel from the maximum pixel value b: Subtract each pixel from the maximum pixel value c: Divide each pixel from the maximum pixel value d: Multiply each pixel from the maximum pixel value