Beantwortet
How can i calculate precision and recall in a Siamese network
yes，sir，may be use model to test data output，and use [tpr,fpr,thresholds] = roc(targets,outputs) to get roc

fast 3 Jahre vor | 0

Beantwortet
Not enough input arguments.
clc; clear all; close all; I=imread('football.jpg'); if ndims(I)==3 I = rgb2gray(I); end imshow(I); N=16; %niveau de q...

fast 3 Jahre vor | 1

Beantwortet
Output of number of people from a thermal image
im = imread('https://ww2.mathworks.cn/matlabcentral/answers/uploaded_files/938099/rgb.png'); jm = rgb2lab(im); bw = im2bw(mat2...

fast 3 Jahre vor | 0

Beantwortet
Polar Plot Axis is Off Center from and not Scaled with Background Image
minS = 15; maxS = 30; minH = 50; %because yellow is apparently yucky c = (-1*minS+maxS)/2; a = maxS-c; ellipticity = c/a;...

fast 3 Jahre vor | 0

Beantwortet
Error using activations functions in matlab
yes，sir，if modify net structure，may be need retrain it，then use activations to get feature so，may be use featuresTrain = activ...

fast 3 Jahre vor | 1

| akzeptiert

Beantwortet
Not using GPU for trainNetwork?
yes，sir，may be use >> gpuDevice to check your ExecutionEnvironment or in train option，set 'ExecutionEnvironment','gpu' 'Exe...

fast 3 Jahre vor | 0

Beantwortet
How to save SeriesNetwork variables to file for quick loading next time?
yes，sir，may be use save to get mat file for target variable，such as warning off all modelfile = 'digitsDAGnet.h5'; net = impo...

fast 3 Jahre vor | 1

| akzeptiert

Beantwortet
what is the best methodology to detect playing cards?
yes,sir，may be use hu，lbp or other feature to classify，or just use cnn to train data

fast 3 Jahre vor | 0

Beantwortet
MATLAB code for non subsampled shearlet transform
yes，sir，may be use NSST toolbox，such as https://ww2.mathworks.cn/matlabcentral/fileexchange/10049-nonsubsampled-contourlet-tool...

fast 3 Jahre vor | 0

Beantwortet
How to convert complex single Image data into complex double image?
yes，sir，may be use double(your_matrix)

fast 3 Jahre vor | 0

Beantwortet
how to select region with longest length on segmented image ?
% Initialization Steps. clc; % Clear the command window. close all; % Close all figures (except those of imtool.) clear; ...

fast 3 Jahre vor | 0

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Beantwortet
Error in Recognize Text Using CRAFT Model And OCR Example
yes，sir，may be check length(output) to judge its number

fast 3 Jahre vor | 0

Beantwortet
Finding black borders in image
yes，sir，may be upload your image file，let's use the follow method bw2 = ~imclearborder(~bw); [r,c] = find(bw2); bw2 = bw(min(...

fast 3 Jahre vor | 1

Beantwortet
How do I return a matrix from a function?
A = readMyPicture("cameraman.tif"); figure; imshow(A, []); function A = readMyPicture (fileName) A = []; if nargin < 1 ...

fast 3 Jahre vor | 0

Beantwortet
featureinputlayer and convolution1dlayer
layers = [ featureInputLayer(100,'Name','input') fullyConnectedLayer(5, 'Name','fc') softmaxLayer('Name','sm') ...

fast 3 Jahre vor | 0

Beantwortet
How to change Y-axis coordinates of meshgrid
imSz = 1000; % assuming images are 1000x1000 imbg = false(imSz); % background "color" imfg = ...

fast 3 Jahre vor | 0

Beantwortet
How to remove scales and the black border from the segmented image
I = imread('https://www.mathworks.com/matlabcentral/answers/uploaded_files/933929/image.jpeg'); I = imcrop(I, [138 47 1061 799]...

fast 3 Jahre vor | 0

Beantwortet
PIV-OH Overlap
yes，sir，may be use quiver(x,y,x_velocity, y_velocity) hold on; h=imshow(PLIF_data,[]) set(h,'AlphaData',0.5)

fast 3 Jahre vor | 0

Beantwortet
fit the found retina area with a second-order polynomial using least-square curve fitting
yes，sir，may i ask what is the target，the curve？such as clc; clear all; close all; I = imread('https://ww2.mathworks.cn/matlabc...

fast 3 Jahre vor | 0

Beantwortet
How to fruit classify by neural network ?
yes，sir，may be use pretrained cnn model，such as https://ww2.mathworks.cn/help/releases/R2019a/deeplearning/examples/classify-im...

fast 3 Jahre vor | 1

| akzeptiert

Beantwortet
Thickness measurements of an optical image
im = imread('https://www.mathworks.com/matlabcentral/answers/uploaded_files/930819/image.png'); bw = im2bw(im); bw2 = imclos...

fast 3 Jahre vor | 0

Beantwortet
How Can I remove lines from the below images?
urls = {'https://www.mathworks.com/matlabcentral/answers/uploaded_files/928744/Stryker_Triathlon%20CR_Total%20Knee.JPG','https...

fast 3 Jahre vor | 0

Beantwortet
manipulating each pixel in an image sequence
yes，sir，may be use loop to process，such as for i = 1 : 40 im = imread(fullfile(pwd, 'images', sprintf('%02d.jpg'))); ...

fast 3 Jahre vor | 0

Beantwortet
How to use train, validation and test?
yes，sir training data is used to train the model the validation data is used to observe the performance of the model during tr...

fast 3 Jahre vor | 0

Beantwortet
How to Split image based on a blue line in image - so i want to split image into 2 and the cut should be where a blue line is in the image.
img = imread('https://www.mathworks.com/matlabcentral/answers/uploaded_files/928519/image.png'); jmg = rgb2lab(img); s = imc...

fast 3 Jahre vor | 0

Beantwortet
How to create fixed rectangle and crop it?
img = imread('https://www.mathworks.com/matlabcentral/answers/uploaded_files/927339/image.jpeg'); figure; imshow(img, []); h =...

fast 3 Jahre vor | 0

| akzeptiert

Beantwortet
How can I convert a graph representation into a density image
yes，sir，may be use imagesc，and colormap to get pcolor image if possible，may be upload the data mat file to analysis

fast 3 Jahre vor | 0

Beantwortet
How to perform normalization of images, splitting of datasets and data processing correctly?
yes，sir，may be use mat2gray 、rescale、mapminmax to process data，such as img = double(imread('rice.png')); [~,PS] = mapminmax(i...

fast 3 Jahre vor | 2

Beantwortet
RGB to LAB converting to a weird colour
img = imread('football.jpg'); jmg = rgb2lab(img); figure; subplot(2, 2, 1); imshow(img, []); title('origin'); subplot(2, 2,...

fast 3 Jahre vor | 0

Beantwortet
Detect the shape in MATLAB
img = imread('https://ww2.mathworks.cn/matlabcentral/answers/uploaded_files/928244/image_2732.png'); bw = im2bw(img); % 霍夫分析 ...

fast 3 Jahre vor | 0