praveen rai

Last seen: ungefär ett år ago | Active since 2017

Followers: 0 Following: 0

Statistics

Feeds

Question

how can I write the video from montage player in my disk
I am using Montage MATLAB command for displaying the input adjacent to output i wan to write that video in my disk I am unabl...

ungefär 5 år ago | 0 answers | 0

0

answers

Question

finding roi in an image
I have a binary image in which there is a line which is in form of white pixels first I want to perform interpolation so that I...

mer än 5 år ago | 0 answers | 0

0

answers

Question

How to get 3D dimensions for an object in an image taken from 3d camera
lets say I have image in which object is box and I know the dimension of box I just want to calculate the dimension i.e lenghth,...

mer än 5 år ago | 1 answer | 0

1

answer

Question

how to connect the adjacent lower edges of each bounding box
I have drawn a bounding box of rectangle shape on each character and save the all 4 point of all bounding box Now I want to co...

ungefär 6 år ago | 1 answer | 0

1

answer

Question

find the closest point and taking the difference of y coordinates
let assume I have A matrix in which there are m points and B matrix in which n points are there I have a point lets say m1(x,y...

ungefär 6 år ago | 1 answer | 0

1

answer

Question

sampling of pixel point and find out the distance between them
i plot a curve line from an image now what i want is to sample each points(pixel) lets say on line no 1 there are m pixels(m1,m...

ungefär 6 år ago | 1 answer | 0

1

answer

Question

how to find the height and width of an alphabet/letter
i have a letter in which I want to find the height and width of this letter any algorithm or code can suggest by anyone

mer än 6 år ago | 1 answer | 0

1

answer

Question

How do I extract only bold text from an image
Does someone have an idea, for example, for some preprocessing or postprocessing of the image to make this work? coding or impl...

mer än 6 år ago | 0 answers | 0

0

answers

Question

region extraction from a text document Image
I have a image(binary image already extracted from Input Image) in which I have to extract the paragraph for example from"Apart...

mer än 6 år ago | 2 answers | 0

2

answers

Question

how to acquire images in matlab using more than one web cam simultaneously
_I am using MATLAB 2014 I have connected my two usb web cam when I am selecting Image acquisition tool from app it is not showin...

ungefär 7 år ago | 0 answers | 0

0

answers

Answered
hwo to extract numeric value from an image
*suppose i have a string str='Sec 4.12 Visual quantization 123' now i want only '123' so how shd i xtract dis part only*

mer än 7 år ago | 1

Question

hwo to extract numeric value from an image
__I have an image in which I recognise the numeric part using *OCR* FUNCTION numeric value is lablled with yellow line rectangle...

mer än 7 år ago | 2 answers | 0

2

answers

Question

how can i find header/footer of an image
*I want to extract the header and footer part in an image* _i have read that this can be done by ocr software(optical character...

mer än 7 år ago | 1 answer | 0

1

answer

Question

How can I extract page number and letter part from an image
_above question which I asked I just want to understand the theory how to do these things so for that I want some link/reference...

mer än 7 år ago | 0 answers | 0

0

answers

Question

comarison of N images
*I have N nummber of images say n1,n2,n3,n4,n5,n6 stored in one folder i want to compare like this and stored all o/p in one lo...

mer än 7 år ago | 0 answers | 0

0

answers

Question

comarison of N images
*suppose I have N images in my single folder let say n1,n2,n3,n4,n5,n6....(images no) i want to compare d images like this n1...

mer än 7 år ago | 0 answers | 0

0

answers

Question

finding the bending angle or change in curvature of line
_in my Image there is one thin line which has some curvature/bending I want to find the that bending angle/change in curvature...

mer än 7 år ago | 0 answers | 0

0

answers

Question

calculate distance with ref line in an image
_I want to calculate the distance between the curved line as in my image and left line i.e reference line (grid line).distance s...

nästan 8 år ago | 0 answers | 0

0

answers

Question

superimose of two images
_@image analyst u have provided me the code how to superimpose and it was very help full but I have another image and I am not a...

nästan 8 år ago | 1 answer | 0

1

answer

Question

extraction of corner points in grid image and how to calculate the distance between corner points
*I ma providing the grid image & i want to find the each corner points of box/square in my image and want to calculate the dista...

nästan 8 år ago | 1 answer | 0

1

answer

Question

THINING ALGORITHM USED IN IMAGE
_**I attaching a zip file in which MATLAB code is there for thinning and images are also there my ques is that when am using th...

nästan 8 år ago | 0 answers | 0

0

answers

Question

making the line thin as equivalent to 1cm wide/pixel
I am providing few images like *sample images/input images* and *desired output images* respectively *sample images* <</ma...

nästan 8 år ago | 1 answer | 0

1

answer

Question

Superimpose two images - one on top of the other
I have uploaded two images "Picture 15.jpg" and "Calibration.jpg". Picture 15.jpg is below: <</matlabcentral/answers/uploa...

nästan 8 år ago | 1 answer | 0

1

answer

Question

How to compute homography matrix H
If i know the 4 corresponding points in image say p1->p1' p2->p2' p3->p3' p4->p4' then how to compute pi(x,y) from pi'(x,...

ungefär 8 år ago | 0 answers | 0

0

answers

Question

hwo to normalise the points with matlab command
i am using this command for normalising -[p1,t1] = Normalise2DPts(p1); [p2,t2] = Normalise2DPts(p2); when i am running this i...

ungefär 8 år ago | 1 answer | 0

1

answer

Question

how to find the homography matrix that maps a 2D image point to a 3D world point on a known plane
lets say homography matrix be h and my points are:p[0] = x:40 y:115 p[1] = x:41 y:120 p[2] = x:43 y:232 p[3] = x:44 y:212 if...

ungefär 8 år ago | 0 answers | 0

0

answers

Question

can anyone provide a code for converting 2d point into 3d cordinate system
i want to map the 2d point into 3d cordinate usinf direct linear transformation algo(DLT) or using homography I am not sure how ...

ungefär 8 år ago | 2 answers | 0

2

answers

Question

i want to convolve two signal
i have a matrix i.e image size is 435*262 (y=435*262) i want to convolve with a 1d array i.e a=[0 1 0] z=conv2(double(y),double...

ungefär 8 år ago | 0 answers | 0

0

answers

Question

i want to find the max element in each row and position of that element in terms of row and column
i am giving the example what i have tried and what result i have got c= 2 3 4 5 67 58 79 81 ...

ungefär 8 år ago | 3 answers | 0

3

answers

Question

How to draw 2D periodic triangular signal
w=1; % signal width Amp=1; % signal amplitude tt=-w:w; y1=Amp-Amp*abs(tt)/w; figure; plot(tt,y1) is this...

ungefär 8 år ago | 1 answer | 0

1

answer