Respondida
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

más de 2 años hace | 0

Respondida
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...

más de 2 años hace | 1

Respondida
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...

más de 2 años hace | 0

Respondida
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;...

más de 2 años hace | 0

Respondida
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...

más de 2 años hace | 1

| aceptada

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

más de 2 años hace | 0

Respondida
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...

más de 2 años hace | 1

| aceptada

Respondida
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

más de 2 años hace | 0

Respondida
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...

más de 2 años hace | 0

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

más de 2 años hace | 0

Respondida
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; ...

más de 2 años hace | 0

| aceptada

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

más de 2 años hace | 0

Respondida
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(...

más de 2 años hace | 1

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

más de 2 años hace | 0

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

más de 2 años hace | 0

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

más de 2 años hace | 0

Respondida
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]...

más de 2 años hace | 0

Respondida
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)

más de 2 años hace | 0

Respondida
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...

más de 2 años hace | 0

Respondida
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...

más de 2 años hace | 1

| aceptada

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

más de 2 años hace | 0

Respondida
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...

más de 2 años hace | 0

Respondida
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'))); ...

más de 2 años hace | 0

Respondida
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...

más de 2 años hace | 0

Respondida
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...

más de 2 años hace | 0

Respondida
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 =...

más de 2 años hace | 0

| aceptada

Respondida
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

más de 2 años hace | 0

Respondida
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...

más de 2 años hace | 2

Respondida
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,...

más de 2 años hace | 0

Respondida
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 ...

más de 2 años hace | 0