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Questions related from Renjith V Ravi
How the test image "Lena" is particular than other test images?. Why this image is good testing for image compression algorithms.
01 January 2018 313 7 View
What is the reason the test image "Cameraman" is used widely to test algorithms in image processing and image encryption?
12 December 2017 1,045 5 View
If I create a random matrix D(i,j) using any chaotic map and XOR a plain image P(i,j) with it and obtained a cipher image C(i,j).Can I call this process as diffusion in image encryption. C(i,j) =...
09 September 2017 9,795 0 View
Here I have mentioned three methods for finding the compression ratio in Matlab .Kindly help me to identify which one is theoretically correct. clear allclc%Read the input...
03 March 2017 5,303 0 View
I am working with Wavelet + SPIHT based image compression.For cameraman image there are getting different PSNR values for different images. What about the compression ratio.Will there be any...
03 March 2017 7,071 13 View
Can Anybody suggest me a SCOPUS indexed journal with less review time, which is accepting manuscripts in LaTeX format ?
03 March 2017 7,145 1 View
I am using 8 bit grayscale image for SPIHT compression(shown in the link) with input value rate =1. Will there be any compression occur in the output? I am using the code shown in the...
03 March 2017 3,457 11 View
Is the journal INTERNATIONAL JOURNAL OF ADVANCED SCIENTIFIC AND TECHNICAL RESEARCH (ISSN 2249-9954) indexed in Thomson Reuters. Also I need to verify, the journal INTERNATIONAL JOURNAL OF COMPUTER...
02 February 2017 2,850 3 View
What is the difference between histogram deviation(H.D) and Maximum Deviation Measuring Factor(M.D.M.F) in image...
01 January 1970 9,961 0 View
While executing the Matlab Command Lo_D,Hi_D,Lo_R,Hi_R] = wfilters('db4') I obtained the following coefficients for the db4 2D wavelet filters [Lo_D,Hi_D,Lo_R,Hi_R] = wfilters('db4') Lo_D =...
01 January 1970 7,331 0 View
