Digital Image Capture Chapter 10 Questions and Answers Already Graded A

Digital Image Capture Chapter 10 Questions and Answers Already Graded A What is digital image capture? The process of converting light into a digital image using a sensor in a camera or scanner. What role does a sensor play in digital image capture? It detects light and converts it into electrical signals to create a digital image. What are the two main types of image sensors used in digital cameras? CCD (Charge-Coupled Device) and CMOS (Complementary Metal-Oxide-Semiconductor). How does a CCD sensor capture images? It collects light in an array of pixels and transfers the data to a processor for image formation. How does a CMOS sensor differ from a CCD sensor? 2 Each pixel in a CMOS sensor has its own amplifier, making it faster and more power- efficient. What is the significance of pixel size in digital image capture? Larger pixels capture more light, improving image quality in low-light conditions. What is the purpose of an image processor in a digital camera? It converts raw sensor data into a final image by adjusting colors, sharpness, and exposure. How does shutter speed affect image capture? It controls how long light hits the sensor, affecting motion blur and exposure. What is ISO in digital image capture? A measure of a sensor’s sensitivity to light, affecting brightness and noise levels. How does increasing ISO impact an image? It makes the image brighter but can introduce more noise or graininess. 3 What is white balance in digital image capture? A setting that corrects color temperature to make colors appear natural under different lighting. What is the purpose of autofocus in digital cameras? It adjusts the lens to ensure sharpness on the subject. What is manual focus in digital image capture? A mode where the photographer adjusts the focus manually instead of relying on the camera’s autofocus system. How does aperture size affect digital image capture? A larger aperture lets in more light, affecting exposure and depth of field. What is depth of field in digital imaging? The range of an image that appears sharp, controlled by aperture and focal length. What is dynamic range in image capture? 4 The range of light and dark tones a camera sensor can record in a single image. What is a RAW file in digital image capture? An uncompressed file format that retains all image data for maximum editing flexibility. What is a JPEG file in digital imaging? A compressed image format that reduces file size while maintaining visual quality. Why do photographers prefer RAW files over JPEGs?