Answered
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

ongeveer 2 jaar ago | 0

Answered
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...

ongeveer 2 jaar ago | 1

Answered
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...

ongeveer 2 jaar ago | 0

Answered
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;...

ongeveer 2 jaar ago | 0

Answered
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...

ongeveer 2 jaar ago | 1

| accepted

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

ongeveer 2 jaar ago | 0

Answered
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...

ongeveer 2 jaar ago | 1

| accepted

Answered
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

ongeveer 2 jaar ago | 0

Answered
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...

ongeveer 2 jaar ago | 0

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

ongeveer 2 jaar ago | 0

Answered
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; ...

ongeveer 2 jaar ago | 0

| accepted

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

ongeveer 2 jaar ago | 0

Answered
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(...

ongeveer 2 jaar ago | 1

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

ongeveer 2 jaar ago | 0

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

ongeveer 2 jaar ago | 0

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

ongeveer 2 jaar ago | 0

Answered
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]...

ongeveer 2 jaar ago | 0

Answered
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)

ongeveer 2 jaar ago | 0

Answered
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...

ongeveer 2 jaar ago | 0

Answered
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...

ongeveer 2 jaar ago | 1

| accepted

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

ongeveer 2 jaar ago | 0

Answered
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...

ongeveer 2 jaar ago | 0

Answered
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'))); ...

ongeveer 2 jaar ago | 0

Answered
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...

ongeveer 2 jaar ago | 0

Answered
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...

ongeveer 2 jaar ago | 0

Answered
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 =...

ongeveer 2 jaar ago | 0

| accepted

Answered
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

ongeveer 2 jaar ago | 0

Answered
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...

ongeveer 2 jaar ago | 2

Answered
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,...

ongeveer 2 jaar ago | 0

Answered
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 ...

ongeveer 2 jaar ago | 0