What will be negative 3x3 digital image for the following 4 bit 3x3 digital image?934
[3 marks]In contrast stretching with piece-wise linear input-output characteristics having corner points (0,0) (50,100) (100,100) (150,200), (200,250) and (255,255). What will be Output pixel value for input pixel 60,75,125 and 200 ?
[4 marks]Consider image size of 1024x1024 having 65535 colors. What is transmission time required to transmit this image without compression using internet speed of 2 MBPS. What is the storage requirement in bytes for such 100 images?
[7 marks]Grey level image has intensity range from 20 to 150. We need to display this image on a device that has grey level range of 0 to 255. Write equation of the transformation function suitable for the display.
[3 marks]What is aliasing in digital images? How can it be prevented?
[4 marks]Describe the process of image restoration and its difference from image enhancement. Provide a detailed example of restoring an image that has been degraded by salt and pepper noise.
[7 marks]For the given input image f(x,y) and processed image f^(x,y) compute MSE, SNR and PSNR. f(x,y) f^(x,y)
[7 marks]Explain the effect of applying a 3x3 averaging filter on a pixel with its 8 neighbors in a grayscale image. If the center pixel value is 150, and all its neighbors are 100, what is the new value of the center pixel after filtering?
[3 marks]Why Sobel edge detection is preferred over Prewitt edge detection in case of noisy image?
[4 marks]Why second derivative operations are not much preferred for edge detection? What is LOG? How it overcomes problem of Laplacian edge detection operator?1
[7 marks]Write 3x3 mask for horizontal line, vertical line and diagonal line edge detection.
[3 marks]What is histogram? What is the purpose of histogram equalization?
[4 marks]What is edge linking? Why edge linking is necessary? Explain methods used for edge linking.
[7 marks]How are colors represented in the RGB color model? Explain with help of example.
[3 marks]Calculate the signal-to-noise ratio (SNR) for an image where the original image has pixel values ranging from 0 to 255, and the noisy version of the image has pixel values ranging from 0 to 255 with additive white Gaussian noise with a standard deviation of 10.
[4 marks]Explain the JPEG image compression standard in detail. Describe the key components of the JPEG compression process including discrete cosine transform (DCT), quantization, and entropy coding.
[7 marks]What is the difference between lossy and lossless image compression techniques?
[3 marks]What will be bit depth of image (bits/pixel) which has spatial resolution 300x400 and size of image is 60,000 Byte
[4 marks]Explain Hough transform. What is the application of Hough transform. What problem occurs for vertical line? How it is solved?
[7 marks]List different types of image file formats. Explain any one file format
[3 marks]Draw mask used for high pass filtering in frequency domain
[4 marks]Describe the basic steps involved in video segmentation algorithms.
[7 marks]Explain the concept of motion compensation in video coding and its role in predicting inter-frame differences.
[3 marks]What are the challenges associated with video segmentation in terms of spatial and temporal coherence.
[4 marks]Explain the process of image decomposition using the wavelet transform. Discuss how the image is decomposed into approximation and detail coefficients at multiple scales, and how this decomposition facilitates multi-resolution analysis.
[7 marks]