Respondida
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...

más de 4 años hace | 1

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Respondida
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]; ...

más de 4 años hace | 1

Respondida
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; ...

más de 4 años hace | 0

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Respondida
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...

más de 4 años hace | 0

Respondida
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; ...

más de 4 años hace | 0

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

más de 4 años hace | 1

Respondida
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...

más de 4 años hace | 0

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Respondida
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...

más de 4 años hace | 0

Respondida
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

más de 4 años hace | 0

Respondida
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...

más de 4 años hace | 0

Respondida
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...

más de 4 años hace | 0

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

más de 4 años hace | 0

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

más de 4 años hace | 1

Respondida
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) - (...

más de 4 años hace | 1

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Respondida
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 =...

más de 4 años hace | 0

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

más de 4 años hace | 1

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

más de 4 años hace | 0

Respondida
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...

más de 4 años hace | 0

Respondida
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...

más de 4 años hace | 0

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

más de 4 años hace | 0

Respondida
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...

más de 4 años hace | 0

Respondida
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...

más de 4 años hace | 1

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Respondida
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...

más de 4 años hace | 0

Respondida
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...

más de 4 años hace | 1

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

más de 4 años hace | 0

Respondida
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...

más de 4 años hace | 0

Respondida
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...

más de 4 años hace | 1

Respondida
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...

más de 4 años hace | 0

Respondida
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 ...

más de 4 años hace | 0

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

más de 4 años hace | 0

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