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WorksheetsImage Processing Quiz-1
Total questions: 25
Worksheet time: 9mins
SVG
Vector
Raster
Scalar
None of the option
Tiff is used for
Website design
Drawing mathematical shapes
Compression
Scanned images
Segmentation is
used to isolate the objects in image
used to convert grey to color
used to convert color to grey scale
No option matched
Large aperture yields
Less depth of field
Less depth of field and less light
Less light
Less depth of field and More light
Focal length is the
distance between camera and lens
distance between lens and sensor
distance between lens and object
distance between sensor and object
Higher f-number means
Small aperture
More DOF
More sharpness
All the options are correct
Choose the Image quality metric
PSNR
Entropy
ROC
Accuracy
If quantization level decreases, then the
compression rate will increase
compression rate will decrease
No change in the output image
Quality will increase
PSNR
is the parameter signal noise random
is the peak signal normalize random
is the peak signal noise random
None of the option
What is gamma value <1
No impact in the output image
Brightness will decrease
Brightness will increase
None of the options are correct
Pseudocolor image is the
True RGB image
3-channel to one channel artificial color image
3-channel to 2 channel artificial color image
Texture image
CGM is a
method to increase the image quality
thresholding algorithm
file format
compression algorithm
Histogram is a graph between
input image intensity (x) and output image intensity (y)
input image intensity (y) and frequency of the input image intensity (x)
input image intensity (x) and frequency of the input image intensity (y)
All the options are correct
Histogram stretching
is a non-linear transformation
log transform
is a linear transform
No correct options
The following is not the pre-processing
resize the image
conversion of color to grey scale
zero padding
pattern recognition
Log transform is used for
Compression
image enhancement
contrast improvement
Steganography
MSE
is the variance of the image
-no correct option
is the average difference of the image
is the mean of the image
Edge is
low frequency
high frequency
moderate frequency
No correct option
In Bit plane slicing, which bit is usually embedding more secret information
Bit -0
Bit -7
cannot embed in any bit
all the bits
dpi/in is the unit of
PSNR
resolution
Mean
luminance
An image is defined as a
Continuous function of time
Two-dimensional function of spatial coordinates
One-dimensional signal
Three-dimensional matrix
The smallest element of a digital image is called:
Bit
Byte
Pixel
Sample
The number of bits used to represent a pixel value is known as:
Spatial resolution
Gray level
Bit depth
Sampling rate
A grayscale image with 8-bit depth can represent how many intensity levels?
128
256
8
64
Which of the following is NOT an image enhancement technique?
Histogram equalization
Contrast stretching
Image segmentation
Log transformation
