Image Foundations

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1. What does the coordinate (x, y) identify in an image using the usual top-left origin?A. A physical length in centimetersB. A horizontal position and a vertical position in the pixel gridC. A guarantee about the object's real-world locationD. A color channel and a bit depth

2. What is the key difference between resolution and bit depth?A. Resolution gives the number of spatial samples; bit depth gives the number of representable levels per sample.B. Resolution and bit depth always measure the same property.C. Resolution determines lens focal length; bit depth determines camera height.D. Bit depth counts objects; resolution counts labels.

3. An image's red object appears blue immediately after loading. Which check is most useful first?A. Reverse all image rows.B. Replace all colors with grayscale.C. Check whether the library interprets the stored channels as RGB or BGR.D. Increase the image dimensions.

4. For a 640 × 480 image with zero-based x and y coordinates, what is the bottom-right location?A. (640, 480)B. (479, 639)C. (639, 479)D. (0, 0)

5. An 800 × 400 image is resized uniformly to 400 × 200. What happens to a box's left coordinate of 100 pixels?A. It becomes 25 pixels.B. It becomes 50 pixels.C. It remains 100 pixels.D. It becomes 200 pixels.

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Image Foundations

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