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# Elysi Cochin

##### Last seen: 8 days ago
337 total contributions since 2012

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Question

What does the equation do in the 2 images to combine it to one image
Please can someone explain what happens in the below code cb and cr are chrominance in red and blue channels bmean and rmean ...

2 months ago | 1 answer | 0

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Question

Find the coordinates nearest to the center coordinate of a patch in an image
i have an image of size [512 512], and xy coordinates values, which have been found on the whole image. (I have attached an exam...

5 months ago | 2 answers | 0

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Question

how to check if (x,y) coordinates fall within another (x,y) coordinate
i have the x,y,w,h --> [x position, y position ,width and height] of the two black boxes and the red boxes inside the black boxe...

5 months ago | 1 answer | 0

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Question

Blob segmentation and writing it to folder
i have segmented few blobs using the below code ccnt = 1; for blob = 1 : n thisBoundingBox = measurements(blob).BoundingB...

5 months ago | 1 answer | 0

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Question

draw bounding box around a character
The code i used is Ch = bw(boundrow(1):boundrow(end),boundcol(1):boundcol(end)); i'll get the character into the variable Ch ...

5 months ago | 1 answer | 0

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Question

write an image file
i have a image im of uint16 datatype figure(1), imshow(im) figure(2), imshow(uint8(im)) figure(3), imshow(im,[]) all the abo...

7 months ago | 1 answer | 0

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Question

find the next row of an element in a matrix
i have vector v v = [4,5;1,2;1,3;1,4;2,6;5,7;4,7;3,4;1,5;2,3;7,9;3,5;8,9;1,6;8 10;5,9;2,4;6,9;2,5;1,7;4,9;3,7;2,8;7,8;4,6;1,9;3...

7 months ago | 1 answer | 0

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Question

find different combinations of splitting a vector
having a vector V, how can i find the different ways to split this vector v into subvectors such that the sum of each subvector ...

7 months ago | 1 answer | 0

### 1

How to display units with my answer?
fprintf('%g kg\n', y)

7 months ago | 0

| accepted

Question

Sort matrix to get the row and column position of sorted matrix
how should i sort the matrix M = [0,15,14,13,10,7,4,1,2; 0,0,9,6,4,12,1,3,1; 0,0,0,10,8,5,3,1,2; 0,0,0,0,17,2,11,1,4; 0,0,0...

7 months ago | 1 answer | 0

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Question

how to do the matrix computation
I have a cost matrix, c, with values as c =[0,12,11,7,10,10,9,8,6,12; 12,0,8,5,9,12,14,16,17,22; 11,8,0,9,15,17,8,18,...

7 months ago | 1 answer | 0

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Question

access the respective values of matrix using the cell array cell position value
i have a matrix as shown in figure, with positions marked I have a cell array with values { [ 1 4 ] ; [ 2 3] }; Now i want ...

8 months ago | 1 answer | 0

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Question

find values in vector present in cell array
i have a cell array cA and vector V with values cA = {[11,21,3;14,5,63], [11,22], [33;95;66;7]}; V = [14 22 33 66]; i wanted ...

8 months ago | 2 answers | 0

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Question

how to split a vector into small subvectors based on condition
how can i split a vector into smaller sub vectors, such that the sum of each vectors is less than N N = 60 V = [30 35 24 15 14...

8 months ago | 2 answers | 0

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Question

display contents of cell array and a vector together
i have a cell array cell_array = {'A' 'B' 'C'} and value = [ 10 20 30] how can i display the cell_array and value_vector toge...

8 months ago | 1 answer | 0

### 1

Question

compute from a set of parameters
C = 60; % capacity of a truck demand = [30 35 24 15 14 48]; % goods to deliver m = 2; % no of avaible trucks i wanted to comp...

8 months ago | 1 answer | 0

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Question

comparing pixels in 3x3 block
Having a matrix as shown below i wanted to take 3x3 pixel and compare the 3 pixels (highlighted in yellow colour) with th...

10 months ago | 1 answer | 0

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Question

fill a boundary region with white colour
i have identified boundaries from a binary image using boundaries = bwboundaries(bw); The output of the above line of code is ...

11 months ago | 3 answers | 0

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Question

how to duplicate the values in one matrix create another matrix of specific dimension
i have a cell array of dimension 1x60, each matrix in cell array is of dimension 23x23 of double datatype i converted this cell...

11 months ago | 1 answer | 0

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Question

comparing 3x3 block with center pixel
i have a matrix as shown below i wanted to take 3x3 pixel and take 3 pixels at a time along with the center pixel, and comp...

11 months ago | 2 answers | 0

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Question

Find histogram bins at which cumulative histogram has 75% of maximum value
How to find histogram bins at which cumulative histogram has 75% of maximum value of an image.

11 months ago | 1 answer | 0

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Question

concatenate column values in a vector
i have a vector v1 = [ 1,0,1,0] (dim 1x4 double) i wanted to join the values in v1 to a new variable v2 = [1010] (dim 1x1 do...

11 months ago | 3 answers | 0

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Question

give labels according to string
I have a cell array of strings with the following pattern String Label 'Abc\a1\L\XYZ1R08' 1 'Abc\a1\R\XYZ1R09' 1 ...

12 months ago | 1 answer | 0

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Question

Find geometric mean and arithmetic mean
how to find geometric mean and arithmetic mean of histogram of an image

12 months ago | 1 answer | 0

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Question

get all image files from nested folder
how to get all image files in such a directory ( folders inside folders )

1 year ago | 1 answer | 0

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Question

delete empty cells from cell array
how to delete the empty cells and get back 4x4 matrix i tried out = ca(~cellfun('isempty', ca)); but i'm getting output ...

1 year ago | 1 answer | 0

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Question

How to create a white rotated box inside a black box
How to create a white rotated box inside a black box as shown in image

1 year ago | 1 answer | 0

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Question

find a vector in a cell array
AP = {[1,2,14];[1,5,14]} P = {[1,5,14]}; i wanted to check if P is in AP i did as IsInAp = find(cellfun(@(x) ismember(path,x...

1 year ago | 1 answer | 0

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Question

select rows satisfying a particular condition
having a matrix of dim 5 x 10 if i give start_index = 1, and end_index = 3, i wanted to get rows starting with value of start...

1 year ago | 2 answers | 0

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Question

how to find all possible path between 2 nodes
knowing the connectivity between nodes, how can i find the possible path between 2 nodes?

1 year ago | 2 answers | 0