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How to measure the distances in a binarized image
yes，sir，may be upload 5 image to debug，such as clc; clear all; close all; img = imread('https://ww2.mathworks.cn/matlabcentral...

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Imagesc Color Assignment of Values
clc; clear all; close all; % 0:25 to white, 25:50 red and so forth. figure; caxis manual my_map=[0 0 0;1 1 1;1 0 1;1 0 0]; ...

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why the vectors in the quiver plot are so small ?
yes，sir，may be use quiver(X,Y,U,V,2); such as clc; clear all; close all; [x,y] = meshgrid(0:0.2:2,0:0.2:2); u = cos(x).*y; ...

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after detect corners of QR , i wanna crop QR depend on centroid i used this but didn't work
clc; clear all; close all; img = imread('https://www.mathworks.com/matlabcentral/answers/uploaded_files/849700/image.bmp'); fi...

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Store spectrogram with image data format in the MATLAB workspace
Address = 'C:\Users\KOH\Desktop\MATLABcode\Soundsample'; Directory = dir(fullfile(Address,'SPTGRM*.wav')); windowSize = 256; ...

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REGULAR BLACK LINES IN GLCM MATRIX
yes，sir，may be upload your tif file，or use imshow(log(abs(glcm)),[]); to check

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Why is my Hotelling Transform implementation producing garbage?
yes，sir，please check criticalPoint = findCriticalPoint(sortedD, 0.1); it is 1，if modify it to criticalPoint = max(20,findCri...

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Please explain this QR code program to me.
yes，sir，i think the key is to judge the square corner，such as now，we can find the rule a = pdist([ci; cj],'euclidean'); b...

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If i have a specific feature as an image how do i extract that from a larger image in matlab
yes，sir，may be use imresize to get the appropriate image matrix

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how can i draw a rectangle around the object in my image by the object main axis?
yes，sir，may be use minboundrect.m，such as clc; clear all; close all; img = imread('https://www.mathworks.com/matlabcentral/ans...

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I wanna detect QR box in image i used this but didn't work , i wanna detect qr depend on black background with white inside
clc; clear all; close all; img = imread('https://www.mathworks.com/matlabcentral/answers/uploaded_files/849340/input%20image.bm...

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How to adjust the intensity of grayscale image?
yes，sir，may be use im = im2uint8(mat2gray(im));

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I need to make a general code
clc; clear all; close all; %function const_interleaver(select) %% constructing the orignal address matrix Address=zeros(24); ...

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Quadratic Optimization for 4D in for Loop
clc; clear all; close all; a = [0.0068 0.0036 0.000299 0.0151]; b = [0.0086 0.00453 0.0016 0.00872]; % f = @(xj,xk) a(i) - (...

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I try to rotated my QR code depends on three boxs i used this code but didn't work
clc; clear all; close all; I = imread('https://ww2.mathworks.cn/matlabcentral/answers/uploaded_files/848380/2.1.bmp'); Igray =...

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Object detection in an image
yes，sir，delete this comment

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Index exceeds the number of array elements (1511).
clc clear all close all % verilerin okunması digitDatasetPath = fullfile(matlabroot,'toolbox','nnet','nndemos', ... ...

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Why my value of MSE and PSNR have 3 values?
yes，sir，it is rgb type，may be use rgb2gray to make it gray type，such as InputImage=double(rgb2gray(imread('https://www.mathwork...

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Codegen Error: unable to copy file
yes，sir，please check file C:\kani\BDU_Optimization\LUT\codegen\mex\classifyIris\classifyIris_mex.mexw64 and check folder C:\k...

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Confusion Matrix without tp fp
yes，sir，may be export your data to workspace，and use plotconfusion to display、use confusion to get result

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Hi I'm trying to run this code right now but it shows "Not enough input arguments" and "Error in GetData (line 13): load([EnvDir 'Envelope_F.mat'],'Envelope_F');"
yes，sir，this is function，so please check the parameters，or set the default parameters， such as function [stimSet, respSet, stim...

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Feature Selection using Correlation-based method
yes，sir，may be use the index to select feature，and then retrain model，such as index=corrSel(feature,class) selected_features=f...

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Doing something simply dumb :(( Trying to get a meshgrid to read my third Class category but not working.
yes，sir，may be use index1 = find(Y==1); index2 = find(Y==2); index3 = find(Y==3); to generate data index vector，and get data...

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Is it possible to run the classification learner app in a loop?
yes，sir，just as https://ww2.mathworks.cn/matlabcentral/answers/1576568-loop-machine-learning-algorithm-functions?s_tid=srchtitl...

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Feature importance with many features
yes，sir，it is feature select、dimension reduce，may be use mRMR to select，use pca to reduce

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How to convert images into grayscale, which are stored in the imagedatastore then split into testing and training?
yes，sir，may be use ColorPreprocessing to aument data，such as augimdsTrain = augmentedImageDatastore(inputSize(1:2),imdsTrain,'C...

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Save/Crop Figure (bmp) file without background
yes，sir，if through figure to save the image file as a bitmap (bmp) format. may be use f = getframe(gca); f = frame2im(f); im...

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Matlab command for plotting complex number?
yes，sir，may be use two vector plot the complex data，such as xy = rand(20,1) + randn(20,1)*i; x = real(xy); y = imag(xy) figur...

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How do I run a .mlapp in a script? How can I access parts of the GUI in this script?
yes，sir，if use fig format gui, my be use guide to open，such as guide open the fig file，and click right mouse to edit callback ...

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Error using imaq.VideoDevice
yes，sir，may be use vidDevice = imaq.VideoDevice('winvideo', 1, strcat('MJPG_',num2str(FRAME_WIDTH),'x',num2str(FRAME_HEIGHT)), ...

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