Digital Media The width of the digital picture is presently 800 pixels (approximately 11.1 in.). Its height is 600 pixels (approximately 8.3 in.). You want to reduce its width as shown. This will allow the picture to fit on any computer screen without scrolling. Using a dilation, what are the coordinates of the vertices of the reduced image?
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Step 1 Find the scale factor.
Dilated picture width: 640 pixels
Current picture width: 800 pixels
Step 2 Multiply the preimage matrix by the scale factor, 0.8.
The coordinates of the vertices of the reduced image are (0, 0), (640, 0), (640, 480), and (0, 480).