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WorksheetsDigital Image Processing Quiz
Total questions: 20
Worksheet time: 7mins
What does the term "Pixel" stand for?
Picture Extraction Logic
Picture Element
Picture Enhancement Level
Picture Encoding Language
What is the smallest element of an image on a computer display?
Bit
Byte
Pixel
Resolution
Which component determines the color of a pixel?
Graphics card
Number of bits
Matrix size
Display resolution
What is used to calculate the total number of pixels in an image?
Total Rows + Total Columns
Rows × Columns
Total Rows ÷ Columns
Columns ÷ Rows
What is the gray level of an 8-bit image?
0
128
255
512
In a binary image, what values can a pixel take?
0 and 255
0 and 1
1 and 2
128 and 255
Which is an example of a binary image?
X-ray
RGB photo
Barcode
Medical MRI
What is the purpose of quantization in digital image processing?
Increase intensity levels
Compress data and reduce complexity
Enhance resolution
Reduce file size only
What happens in an image with low quantization?
Sharp details are retained
Posterization occurs
Colors are enhanced
Pixel size increases
Which process converts a continuous image into a discrete form?
Quantization
Sampling
Compression
Resampling
What determines the spatial resolution of an image?
Sampling
Quantization
Color depth
Pixel depth
What does RGB stand for in color image representation?
Red, Gray, Blue
Resolution, Green, Bit
Red, Green, Blue
Rotational Gradient Background
Which type of image has only two intensity levels?
Grayscale
Binary
Color
RGB
What determines the intensity resolution of an image?
Sampling
Quantization
File Format
Bit Depth
What happens when sampling is reduced?
Image quality improves
Image resolution decreases
Image size increases
More details are retained
Which type of image representation is common for medical X-rays?
Binary
Grayscale
RGB
High-Resolution Color
What do high sampling and quantization levels result in?
Low-quality images
Compressed file sizes
High-quality images
Reduced computational demands
What is the main challenge with high sampling?
Increased storage requirements
Reduced computational demands
Poor image quality
Fewer intensity levels
What is the formula for calculating the total number of pixels?
Total Rows + Total Columns
Rows × Columns
Rows - Columns
Rows ÷ Columns
What is the role of CCD in digital images?
Reduces noise
Increases resolution and smoothness
Decreases pixel size
Enhances pixel color depth
