Which of the following techniques is commonly used to adjust image brightness and contrast?
A). Color inversion
B). Histogram equalization
C). Sepia tone effect
D). Grayscale conversion
Which statement best describes the sharpening effect in image editing?
A). It increases image size
B). It reduces image contrast
C). It enhances image edges
D). It adds noise to images
What is the purpose of the blur effect in image processing?
A). To enhance image edges
B). To reduce image noise
C). To soften and blend image details
D). To increase image contrast
Which method is commonly used to manipulate individual pixels in an image?
A). alterPixel()
B). setPixel()
C). adjustPixel()
D). modifyPixel()
How does the color depth of an image affect the quality of image filters and effects?
A). Higher color depth results in better quality
B). Lower color depth results in better quality
C). Color depth has no impact on quality
D). Color depth affects image size only
Which technique is commonly used to remove image noise and artifacts?
A). Sharpening effect
B). Histogram equalization
C). Gaussian blur effect
D). Color inversion effect
What happens when the alpha channel value of a pixel is set to zero?
A). The pixel becomes transparent
B). The pixel becomes opaque
C). The pixel becomes white
D). The pixel becomes black
Which effect can be achieved by setting all RGB channels of a pixel to the same value?
A). Sepia tone effect
B). Blur effect
C). Grayscale conversion
D). Color inversion effect
What is the purpose of applying image filters and effects using pixel manipulation techniques?
A). To increase image resolution
B). To enhance image appearance
C). To reduce image size
D). To add text to images
Which technique can be used to create a vignette effect in photography?
A). Adjusting image brightness
B). Blurring image edges
C). Adding color gradients
D). Applying a sepia tone effect