Rank: 84 based on 437 downloads (last 30 days) and 19 files submitted
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Cavin Dsouza

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Company/University
Mumbai University

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Professional Interests:
Number Theory, Data Compression and Encryption,Image Processing

 

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Files Posted by Cavin View all
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16 Apr 2013 Simulation of DCT, Walsh, Hadamard, Haar and Slant transform using variable block sizes Performs non sinusoidal image transforms on gray-scale images and DCT using the dct matrix. Author: Cavin Dsouza image processing, image compression 37 0
12 Apr 2013 Basis Images generation of 4*4 order of DCT, DST, Walsh, Hadamard , Haar and Slant Generates 4*4 order basis images of sinusoidal and non sinusoidal transforms Author: Cavin Dsouza image processing 23 0
19 Feb 2013 Denoising using Median Filtering Eliminates salt and pepper noise from an image except at the boundary pixels. Author: Cavin Dsouza image processing 33 0
19 Feb 2013 Image Masking Technique It helps in edge detection, Image smoothening depending upon the masking matrices used. Author: Cavin Dsouza image processing 21 0
28 Jan 2013 Non-Return-to-Zero (NRZ) line code In telecommunication, a non-return-to-zero (NRZ) line code is a binary code. Author: Cavin Dsouza communications 24 0
Comments and Ratings by Cavin
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03 Dec 2012 To check whether an entered date is valid or not. The program checks whether a date entered in DD/MM/YYYY format is a valid one or not. Author: Cavin Dsouza

Hey..thanks for the advice.I will make the necessary changes...and yes instead of a script with input command...I'll re-write it as a function instead.
I was completely unaware about the year 1900 not being a leap year...I'll see to all this.
I didnt think much over the clearing commands....I'll rectify them..using a function will eliminate all of these glitches.
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12 Apr 2013 Manchester Line Coding It is a line code in which the encoding of each data bit has at least one transition. Author: Cavin Dsouza ashraf

good
15 Jan 2013 Zooming and Shrinking of an Image This code explains how an Image can be resized by u user entered zooming or shrinking factor. Author: Cavin Dsouza Jurgen

Hi, I have a question.

Why is your output is different from matlab's imresize()? E.g. if I use factor 2 it gives 511x511 instead of 512x512. And why does the zoom version have a 'raster' pattern--shouldn't it use nearest neighbor interpolation?

Incidentally, what you call zoom is technically called enlarging. Zoom = cropping && enlarging.
03 Dec 2012 To check whether an entered date is valid or not. The program checks whether a date entered in DD/MM/YYYY format is a valid one or not. Author: Cavin Dsouza Dsouza, Cavin

Hey..thanks for the advice.I will make the necessary changes...and yes instead of a script with input command...I'll re-write it as a function instead.
I was completely unaware about the year 1900 not being a leap year...I'll see to all this.
I didnt think much over the clearing commands....I'll rectify them..using a function will eliminate all of these glitches.
03 Dec 2012 To check whether an entered date is valid or not. The program checks whether a date entered in DD/MM/YYYY format is a valid one or not. Author: Cavin Dsouza Simon, Jan

Be careful: This is a script which calls "clear all", such that all current work is lost. This is not a friendly idea when code is posted for the community. In addition "clear all" removes all functions from the memory, such that reloading them wastes time. It would be smarter to use a function with an inputs, instead of a script and the INPUT command. Then this function could be of general use.
"close all" closes all figures, but why?

The test of the leap year is incomplete: 1900 has not been a leap year.
Top Tags Applied by Cavin
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image processing, communications, data compression and encryption, rsa, arithmetic coding
Files Tagged by Cavin View all
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Updated   File Tags Downloads
(last 30 days) 		Comments Rating
16 Apr 2013 Simulation of DCT, Walsh, Hadamard, Haar and Slant transform using variable block sizes Performs non sinusoidal image transforms on gray-scale images and DCT using the dct matrix. Author: Cavin Dsouza image processing, image compression 37 0
12 Apr 2013 Basis Images generation of 4*4 order of DCT, DST, Walsh, Hadamard , Haar and Slant Generates 4*4 order basis images of sinusoidal and non sinusoidal transforms Author: Cavin Dsouza image processing 23 0
19 Feb 2013 Denoising using Median Filtering Eliminates salt and pepper noise from an image except at the boundary pixels. Author: Cavin Dsouza image processing 33 0
19 Feb 2013 Image Masking Technique It helps in edge detection, Image smoothening depending upon the masking matrices used. Author: Cavin Dsouza image processing 21 0
28 Jan 2013 Non-Return-to-Zero (NRZ) line code In telecommunication, a non-return-to-zero (NRZ) line code is a binary code. Author: Cavin Dsouza communications 24 0

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