#Image Processing

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Answered

Finding a specific row in a matrix based on user inputs?

#Do the necessary changes, as required %let say mat_data is the main matrix mat_data=[1 1 3 4 56 1 2 3 4 50 ...

Finding a specific row in a matrix based on user inputs?

#Do the necessary changes, as required %let say mat_data is the main matrix mat_data=[1 1 3 4 56 1 2 3 4 50 ...

1 day ago | 0

Answered

How can I faster matrix multiplication

Is it simmilar? G=[-0.00101584090085100 -0.0373729264800720 0.00786581385357300 -0.0373729264800720 -0.284509289498308 0.075...

How can I faster matrix multiplication

Is it simmilar? G=[-0.00101584090085100 -0.0373729264800720 0.00786581385357300 -0.0373729264800720 -0.284509289498308 0.075...

1 day ago | 0

Answered

Simulation Domain (Region)?

May be, he is talking about x and y axes scaling N_x =1:0.1:100; N_y =1:0.1:100;

Simulation Domain (Region)?

May be, he is talking about x and y axes scaling N_x =1:0.1:100; N_y =1:0.1:100;

1 day ago | 0

Answered

Drawing Rectangles/Polygons shapes with data

I think, one for loop is sufficients %Read the file xlsx or CSV for loop to read the individual row row_data=data; % Please ...

Drawing Rectangles/Polygons shapes with data

I think, one for loop is sufficients %Read the file xlsx or CSV for loop to read the individual row row_data=data; % Please ...

2 days ago | 0

Answered

comparison and replacement of values between 2 matrixes.

"i am wanting to find and replace the values in the 4th column of the first matrix, with the values in the 4th column of the 2n...

comparison and replacement of values between 2 matrixes.

"i am wanting to find and replace the values in the 4th column of the first matrix, with the values in the 4th column of the 2n...

3 days ago | 0

Answered

How can i find maximum and minimum intensity values of gray image????

min_intensity=min(grayImage(:)); max_intensity=max(grayImage(:));

How can i find maximum and minimum intensity values of gray image????

min_intensity=min(grayImage(:)); max_intensity=max(grayImage(:));

12 days ago | 0

Answered

pleas! what is wrong in this program?

sampleTime = 1/500000; % Sample time (s) maxDopplerShift = 200; % Maximum Doppler shift of diffuse components (Hz) delayVector...

pleas! what is wrong in this program?

sampleTime = 1/500000; % Sample time (s) maxDopplerShift = 200; % Maximum Doppler shift of diffuse components (Hz) delayVector...

12 days ago | 0

| accepted

Answered

Making my answer show in matrix form

for n=1:7 coordsX(n)= ; % Semicolon here coordsY(n)= ; % Semic...

Making my answer show in matrix form

for n=1:7 coordsX(n)= ; % Semicolon here coordsY(n)= ; % Semic...

12 days ago | 0

Answered

Removing unwanted components in a binary image?

BW=bwareafilt(bw_im,1); result=bw_im-BW; imshow(result); If you are more interested to control the small area objects use thi...

Removing unwanted components in a binary image?

BW=bwareafilt(bw_im,1); result=bw_im-BW; imshow(result); If you are more interested to control the small area objects use thi...

12 days ago | 0

Answered

Fitting a curve to a histogram

data=[yA;yB;yC] histfit(data) Set appropriately https://in.mathworks.com/help/stats/histfit.html

Fitting a curve to a histogram

data=[yA;yB;yC] histfit(data) Set appropriately https://in.mathworks.com/help/stats/histfit.html

15 days ago | 0

Answered

Why does it say Iteration limit reached and how do I fix it?

Its doing as defined in the code, when the iteration reached more than iteration limit, it reflects the message as mentioned wit...

Why does it say Iteration limit reached and how do I fix it?

Its doing as defined in the code, when the iteration reached more than iteration limit, it reflects the message as mentioned wit...

15 days ago | 0

Answered

error occured during selection of random images

Beacuse length of F / fullfile total images is less than 10, check and verify

error occured during selection of random images

Beacuse length of F / fullfile total images is less than 10, check and verify

15 days ago | 0

Answered

What is correct script for below question?

here fplot x ranges -pi to pi f=@(x) x.^2-sin(x)+(1/x); fplot(f,[-pi pi]); Now get the f value with x_data=x=[0,1,pi/2,pi],...

What is correct script for below question?

here fplot x ranges -pi to pi f=@(x) x.^2-sin(x)+(1/x); fplot(f,[-pi pi]); Now get the f value with x_data=x=[0,1,pi/2,pi],...

15 days ago | 0

Answered

storing performance values for each monte-carlo simulations

Use array loop mean_difference(i)= end

storing performance values for each monte-carlo simulations

Use array loop mean_difference(i)= end

17 days ago | 0

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Answered

Image Sharpness Calculation ?

my_image1 = my_image(:,:,1); sharpness=0; [r,c]=size(my_image1); for i=2:r-1 for j=2:j-1 L=(my_image1(i-1,j)+my_ima...

Image Sharpness Calculation ?

my_image1 = my_image(:,:,1); sharpness=0; [r,c]=size(my_image1); for i=2:r-1 for j=2:j-1 L=(my_image1(i-1,j)+my_ima...

17 days ago | 0

Answered

Do the Inverse Fourier transform from frequency distribution

ifft Is it? ifft(FT_Erm)

Do the Inverse Fourier transform from frequency distribution

ifft Is it? ifft(FT_Erm)

17 days ago | 0

Answered

Error bars with zero standard deviation.

std_dev = [0 0.0295 0.0090 0.1239 0 0.5667 0.2855 0.0857]; %Lets suppose err=rand(1,8); idx=find(std_de...

Error bars with zero standard deviation.

std_dev = [0 0.0295 0.0090 0.1239 0 0.5667 0.2855 0.0857]; %Lets suppose err=rand(1,8); idx=find(std_de...

1 month ago | 0

Answered

What does this mean?

1.0e+04 means 1.0 x10 to the power +4 >> 1.0e+04 ans = 10000 >> This number is multiply with lower both number in y...

What does this mean?

1.0e+04 means 1.0 x10 to the power +4 >> 1.0e+04 ans = 10000 >> This number is multiply with lower both number in y...

1 month ago | 0

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Answered

How to scatter plot a row of matrix against it's row number?

data=rand(400,3000); for i=1:170 scatter(repelem(i,3000),data(i,:)); hold on end ??

How to scatter plot a row of matrix against it's row number?

data=rand(400,3000); for i=1:170 scatter(repelem(i,3000),data(i,:)); hold on end ??

1 month ago | 0

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Answered

Plot using while loop

pi=8000; ri=28; rp=45; rp2=35; ro=80; r=[ri:0.01:ro]; n=1; while(r(n)<=rp2) pa=0; pb=pi; Sr(n)= ((pa*ri^2 - pb*rp^2)/(...

Plot using while loop

pi=8000; ri=28; rp=45; rp2=35; ro=80; r=[ri:0.01:ro]; n=1; while(r(n)<=rp2) pa=0; pb=pi; Sr(n)= ((pa*ri^2 - pb*rp^2)/(...

1 month ago | 0

Answered

save new images in a folder

#Do change as per requirement. Images=dir('C:\input_path\folder_name\*.png'); % Create Folder outDirectory='C:\out_put_path\o...

save new images in a folder

#Do change as per requirement. Images=dir('C:\input_path\folder_name\*.png'); % Create Folder outDirectory='C:\out_put_path\o...

1 month ago | 1

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Answered

Printing loop(element wise multiplications) output

vr=40; u=0; S=12; P=4; m=5; q=1; V=700; f=50; Q=666666.666; Btooth=1.8; Biron=1.6; s=0.1; Kw=0.955; pf_n=0.35:0...

Printing loop(element wise multiplications) output

vr=40; u=0; S=12; P=4; m=5; q=1; V=700; f=50; Q=666666.666; Btooth=1.8; Biron=1.6; s=0.1; Kw=0.955; pf_n=0.35:0...

1 month ago | 0

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Answered

How to measure the mean contrast of edge pixels?

image is a gray scale image. th=128; %considering unit8 image having range 0-255, you can decide or calculate data=image>=t...

How to measure the mean contrast of edge pixels?

image is a gray scale image. th=128; %considering unit8 image having range 0-255, you can decide or calculate data=image>=t...

1 month ago | 0

Answered

Segmentation of Lungs from Chest X-Ray Images

>> whos sortedSolidity Name Size Bytes Class Attributes sortedSolidity 0x0 ...

Segmentation of Lungs from Chest X-Ray Images

>> whos sortedSolidity Name Size Bytes Class Attributes sortedSolidity 0x0 ...

1 month ago | 0

Answered

error in for loop

if T_43 == 1 % Radiator V_H_WS = 0 if V_H_WS == 0 && FC_in < 0.5 f_pl = 0.588 ; elseif V_H_WS == 0 && F...

error in for loop

if T_43 == 1 % Radiator V_H_WS = 0 if V_H_WS == 0 && FC_in < 0.5 f_pl = 0.588 ; elseif V_H_WS == 0 && F...

1 month ago | 0

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Answered

Enhancing Image with Histogram Matching and Median Filter

I want to enhance the MRI image by histogram matching and median filter Histogram Matching: Are you considering with target im...

Enhancing Image with Histogram Matching and Median Filter

I want to enhance the MRI image by histogram matching and median filter Histogram Matching: Are you considering with target im...

1 month ago | 1

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Answered

Getting Spots in banana

rgbImage=imread('ban.jpeg'); subplot(121),imshow(rgbImage); grayImage=rgb2gray(rgbImage); [segment,blackSpots]=bwlabel(~im2bw...

Getting Spots in banana

rgbImage=imread('ban.jpeg'); subplot(121),imshow(rgbImage); grayImage=rgb2gray(rgbImage); [segment,blackSpots]=bwlabel(~im2bw...

1 month ago | 0

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Answered

calculation of TP, FP,TN and FN for the dataset

For basic understanding, lets say seg_im is the segmented binary image as per ROI and gold_im is the gold data/ground truth imag...

calculation of TP, FP,TN and FN for the dataset

For basic understanding, lets say seg_im is the segmented binary image as per ROI and gold_im is the gold data/ground truth imag...

1 month ago | 0

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Answered

Calculating The Number of frames

https://in.mathworks.com/matlabcentral/answers/250033-number-of-frames-in-video-file-with-matlab-2015b

Calculating The Number of frames

https://in.mathworks.com/matlabcentral/answers/250033-number-of-frames-in-video-file-with-matlab-2015b

1 month ago | 0

Answered

Filter noise in logical vector

Do Modification: Just Hint here (May Be) loop data_generation(i)=present_data; if present_data==1 tic while toc== end en...

Filter noise in logical vector

Do Modification: Just Hint here (May Be) loop data_generation(i)=present_data; if present_data==1 tic while toc== end en...

1 month ago | 0