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Error related to datasets when using yolov2.
yes，sir，as the information，please make your image to rgb not gray，such as augimdsTrain = augmentedImageDatastore(inputSize(1:2)...

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How to use a self-made loss function for a simple Neural Network in Matlab?
yes，sir，may be it same on：https://ww2.mathworks.cn/matlabcentral/answers/1618945-how-to-use-a-self-made-loss-function-for-a-simp...

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How to extract informative part from a signal ?
yes，sir，may be use data filter to smooth data vector，and check the diff to segment data，get the split index range to segment ...

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Invalid training data. Sequence responses must have the same sequence length as the corresponding predictors.
yes，sir，may be set sequenceInputLayer to sequenceInputLayer(10, ……) to match the input data，1*10 dimension

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How to use a self-made loss function for a simple Neural Net ?
net=newff([0,1],[5,1],{'tansig','logsig'},'traingd') net.performFcn for more information，please check https://www...

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Index in position 2 exceeds array bounds (must not exceed 1)
yes，sir，may be upload 'offside.jpg' to debug may be check the 39 line，is it two columns matrix

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determine pixel length and width of the body
yes，sir，may be use bwlabel and regionprops to get the area information may be upload your origin image，then we can do some anal...

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Is there any limitation on the data ratio that is not suitable for cross-validation?
yes，sir，may be plot roc and confuse matrix to do some analysis

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How to train resnet50 model on multiple input?
yes，sir，may be use addLayers、connectLayers to merge net layers

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Hi, I want to apply arithmetic coding to the image. Can anyone help me?
clc; clear all; close all; img = imread('cameraman.tif'); data = img(:); input=double(data); [alphabet,~,seq]=unique(input)...

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Enhancing an RGB image to identify a feature
clc; clear all; close all; img = imread('https://www.mathworks.com/matlabcentral/answers/uploaded_files/843265/image.jpeg'); ...

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Hi everyone. I had problem to display my value into "edit field"
app.RSquareEditField.Value = norm([y1-y]);

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I have an image with gaussian noise and periodic noise. How to remove gaussian noise from image?
clc; clear all; close all; I=imread('cameraman.tif'); subplot(1,2,1);imshow(I); J = imnoise(I,'gaussian'); [x, y]=meshgrid(...

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how can I read and extract the 2 LSBs of every byte from the RGB image array ?
clc; clear all; close all; img = imread('cameraman.tif'); img2 = blockproc(img,[1 1],@sp); figure; imshowpair(img,img2,'monta...

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Not enough input arguments
yes，sir，may be use [c_matrix,Result,RefereceResult]= confusion(actual,predict_label);

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Undefined function or variable
clc; clear all; close all; img = imread('https://www.mathworks.com/matlabcentral/answers/uploaded_files/844815/image.jpeg'); f...

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How to convert a DICOM image into a specific Gray Scale ?
yes，sir，may be use imtool to interactively adjust the grayscale parameters to view the effect

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Organise my Dataset images in 4 Array
How I can reach the main files of that example in MATLab database folders. click the button “Open live script” or check in fo...

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When training a network with "trainNetwork", how to keep the trainable parameters from the begining to the end?
yes，sir，may be set options to train，such as options = trainingOptions('sgdm', ... 'MaxEpochs',20,... 'InitialLearnRat...

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Preparing a datastore for a multi-input CNN
visiondataPath = fullfile(matlabroot,'toolbox','vision','visiondata'); trdatstore = imageDatastore(visiondataPath,'IncludeSubfo...

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Why image doesnt show correctly while reading a binary file?
close all; clear all; clc; a = load('Rsaved1.bin'); a = reshape(a, 160, 90); b = load('Rsaved2.bin'); b = reshape(b, 160, ...

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Background modeling using univariate Gaussian density function.
yes，sir，may be use createBackgroundSubtractorMOG2，such as import cv2 as cv import numpy as np vid = cv.VideoCapture("D:/Pro...

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How to display second level dwt?
yes，sir，may be use the dimension information，such as close all; clear all; clc; %Reading picture by Matlab X=imread('camera...

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No pixel label data found - using the pixelLabelTrainingData function...
yes，sir，when load the mat file，all field is empty， please check，such as a = load('gTruthSeq.mat'); a.gTruth.LabelDefinitions

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Interpolation method of IMAGE
yes,sir，may be default display size confused，such as clc; clear all; close all; x = zeros(640, 480, 3); x(:, 1:2:end, :) = 1;...

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What to do if insertText doesn't work, but there are no error codes?
yes，sir，may be use text to add text object on figure，or use insertText to generate a new image and imshow by another figure，such...

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Error using trainNetwork (line 183) Invalid network. Caused by: Layer 'fc7': Input size mismatch. Size of input to this layer is different from the expected input size
modify lgraph = replaceLayer(lgraph,'fc6',newFCLayer); to lgraph = replaceLayer(lgraph,'fc8',newFCLayer); net = alexnet; ne...

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Selecting Images from the drop-down menu
% Value changed function: DropDown function DropDownValueChanged(app, event) value = lower(app.Dro...

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how to display any image for 500 ms
clc; clear all; close all; % preapare data xyloObj = VideoReader('traffic.avi'); nFrames = xyloObj.NumberOfFrames; data = []...

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How to split imagedatastore and pixellabeldatastore
yes，sir，please check the help doc “Semantic Segmentation Using Deep Learning” we can learn the way to split data and label，such...

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