Community Profile # Richa Sharma

9 total contributions since 2011

Professional Interests: Digital Image Processing

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Question

How to remove checkerboard kind of effect in the output image
I divided my image (1280*640) into non-overlap blocks of 128*128 and applied Gabor filter on each block. When I visualise the fi...

5 years ago | 0 answers | 0

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Question

How to specify 2 different colors in matlab command ' plotmatrix '?
I am trying to generate a plot using plotmatrix(X) with row 1:8 of X in blue and 9:16 of X in red color. How to specify 2 diffe...

6 years ago | 0 answers | 0

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Question

What should be FFT of a constant function?
As per theory,FFT of a constant fn. is a DC value. But when I take an array 'A' of ones of size 172, i.e. A[1 1 1 1 1.....172 ...

8 years ago | 2 answers | 0

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Question

How to design a 2D filter of size 512*512 and a 1D filter of size 1*512 with hyperbola properties?
Hi, I want to design a 2D filter of size 512*512 and a 1D filter of size 1*512 with following equation: (y*y)/512-(x*x)/512...

9 years ago | 0 answers | 0

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Question

How band pass filtering is physically achieved by convolving logGabor filter generated with some center frequency?
Hi, I am trying to understand LogGabor filters in frequency domain.I understand that A complex Gabor filter is defined as the p...

9 years ago | 1 answer | 0

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Question

Convolving an image with 2D log gabor and as the result we receive two Gabor maps- amplitude map and orientation map.
Hi , I need Matlab code for - Convolving an image with 2D log gabor and as the result of we receive two Gabor maps. The map wit...

9 years ago | 2 answers | 0

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Question

Region mean in dicom image is an integer value but in png or jpg,it is a fractional value. why?
Region mean intensity value in dicom image is an integer value but in png or jpg,it is a fractional value. why? Richa

10 years ago | 0 answers | 0

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Question

compare intensity values of a dicom image with png
Hi, I am trying to compare intensity values of a dicom image with png image.I am seing intensity values with help of data curso...

10 years ago | 0 answers | 0

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Question

How to calculate area of a segment in gray scale image in pixels
Hi, I have a gray scale image .I want to select a segment/area of it using mouse cliks and want to know size of this sected are...

10 years ago | 1 answer | 0

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