Image processing

1. Image processing is a method to perform operations on an image in order to get an enhanced image or to extract some useful information from it. It involves various techniques including image enhancement, segmentation, noise reduction, feature extraction, pattern recognition, and more. Image processing is used in a wide range of applications such as medical imaging, satellite imaging, facial recognition, self-driving cars, and digital photography. It plays a crucial role in enhancing the quality of images, analyzing visual data, and facilitating decision-making in various fields.

What is spatial domain processing in image processing?

A) Analyzing the frequency components of an image.
B) Converting an image to a different color space.
C) Operations are performed directly on the pixels of an image.
D) Applying filters to an image.

2. What is image segmentation?

A) Dividing an image into multiple segments to simplify its representation.
B) Adjusting the contrast of an image.
C) Creating a 3D representation of an image.
D) Detecting and recognizing objects in an image.

3. What is edge detection in image processing?

A) Colorizing a black and white image.
B) Blurring the details in an image.
C) Morphing one image into another.
D) Identifying the boundaries of objects in an image.

4. What is image compression?

A) Converting a color image to grayscale.
B) Reducing the size of an image file while preserving its visual quality.
C) Enlarging an image without losing quality.
D) Adding noise to an image.

5. What does the term 'bit depth' refer to in image processing?

A) The physical size of an image in pixels.
B) The number of bits used to represent each pixel in an image.
C) The aspect ratio of an image.
D) The number of colors in an image.

6. What is histogram equalization used for in image processing?

A) Improving the contrast of an image by spreading out pixel values.
B) Converting an image to black and white.
C) Adding noise to an image.
D) Resizing an image.

7. What is the purpose of morphological operations in image processing?

A) Smoothing out the texture of an image.
B) Enhancing the brightness of an image.
C) Applying artistic filters to an image.
D) Manipulating the structure of objects in an image.

8. In image processing, what is the Fourier transform used for?

A) Creating animations from still images.
B) Rotating an image.
C) Converting an image from spatial domain to frequency domain.
D) Detecting edges in an image.

9. What is a convolutional neural network (CNN) commonly used for in image processing?

A) Image classification and object detection.
B) Adding motion blur to images.
C) Creating image collages.
D) Converting color images to black and white.

10. What is template matching in image processing?

A) Finding a subimage within a larger image.
B) Detecting edges in an image.
C) Creating a collage from multiple images.
D) Generating random images.

11. What is color space conversion in image processing?

A) Resizing an image.
B) Converting an image from one color representation to another.
C) Adding noise to an image.
D) Adjusting the brightness of an image.

12. What is the purpose of dilating an image in morphological operations?

A) Reducing the size of objects in an image.
B) Changing the colors of an image.
C) Adding noise to an image.
D) Expanding the boundaries of objects in an image.

13. Which image file format supports lossless compression?

A) PNG
B) GIF
C) BMP
D) JPEG

14. Which technique is commonly used to remove noise from images?

A) Thresholding
B) Dithering
C) Median filtering
D) Saturation adjustment

15. Which algorithm is commonly used for image segmentation?

A) Principal component analysis
B) K-means clustering
C) Linear regression
D) Gradient descent

16. Which image processing technique is used for recognizing and extracting text from images?

A) Histogram analysis
B) Lens distortion correction
C) Optical Character Recognition (OCR)
D) Pixel averaging

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