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yanqi liu


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31 total contributions since 2021

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Answered
Convert Scatter Points to a gray scale image
use imagesc to display

2 maanden ago | 0

Answered
distance between several objects in binary image
sir, may be use the follow code clc; clear all; close all; img=imread('image.jpeg'); J = rgb2lab(img); a = mat2gray(J(:,...

3 maanden ago | 0

Answered
??? Undefined function or method 'fftshow' for input arguments of type 'double'.
sir, please copy to one m file, like follows clc; clear all; close all; a=imread('Fig0441(a).tif'); % whos a g=fspecial('g...

3 maanden ago | 0

Answered
How to identify and locate cells
sir,may be use the demo,Cell Counting https://ww2.mathworks.cn/help/vision/ug/cell-counting.html but the parameters need to ...

3 maanden ago | 0

Answered
Modifying a TIFF file and saving it to a new one with the same size
sir, may be need upload some files to debug.

3 maanden ago | 0

Answered
Is edge method in activecontour function working for 3D image?
sir, i think may be use active code 《Snakes, Shapes, and Gradient Vector Flow》

3 maanden ago | 0

| accepted

Answered
??? Undefined function or method 'fftshow' for input arguments of type 'double'.
sir, may be use the follow code clc; clear all; close all; c=imread('cameraman.tif'); cf=fftshift(fft2(c)); figure; fftshow...

3 maanden ago | 0

Answered
How to create an original matrix by using non zero value indices?
sir, may be use the follows code clc; clear all; close all; A = [1 0 0 0 1; 1 0 ...

3 maanden ago | 0

| accepted

Answered
Detecting and Plotting A Circular Region, Finding its Coordinates
sir, sorry, i do not get all the images, so i use guess to figure it out, like follows clear all; clc; close all; img = imre...

3 maanden ago | 0

Answered
Similar image grouping in dataset
such as use alexnet, use the feature vector layer = 'fc7'; vec = activations(net,augimds,layer,'OutputAs','rows'); then, u...

3 maanden ago | 0

Answered
Detecting and Plotting A Circular Region, Finding its Coordinates
sir, may be use the follow code, such as clear all; clc; close all; img = imread('./image.png'); J = rgb2lab(img); l = mat...

3 maanden ago | 0

Answered
how to change the interior pixel of a closed boundary surface to a different pixel using MATLAB?
sir,may be use the follow code clear all; clc; close all; A = load('Boundary_closed_1s_3s.txt'); b = im2bw(A); b = imclose...

3 maanden ago | 0

Answered
dividing groundtruth into training, testing and validation
[imds60, imds10, imds30] = splitEachLabel(imds,0.6,0.1)

3 maanden ago | 0

Answered
Imwrite with changing title
use ImLabel = sprintf("a=%.2f_b=%.2f_x=%.2f_y=%.2f_xBar=%.2f_yBar=%.2f_amplitude=%.2f_xCentroid=%.2f_ yCentroid=%.2f",a,b,x,y...

3 maanden ago | 0

| accepted

Answered
How can I measure the length of these line segments in this image mask?
clc; clear all; close all; load BW_ROI.mat b = BW_roi_nodot; b = ~b; % measure the length of every line segment % b([1 end]...

3 maanden ago | 0

Answered
Measure the displacement of an object between two figures or more.
reference resources clear all; clc; close all; rects = []; for i = [2 6 12] img = imread(sprintf('./G%d.JPG', i)); ...

3 maanden ago | 1

| accepted

Answered
Please, advice how to pre-processing the image labelling.
loop for table use exist(filename, 'file') to judge the file is or not exist

3 maanden ago | 0

Answered
how to change the interior pixel of a closed boundary surface to a different pixel using MATLAB?
reference resources clear all; clc; close all; A = load('Boundary_closed_1s_3s.txt'); b = im2bw(A); b = imclose(b, strel...

3 maanden ago | 1

Answered
How to make a similarity analysis of several colormap plots
use color hist to compute or you can use sim hash functions

3 maanden ago | 0

Answered
using OCR on a custom, discontinuous font
if you use default ocr, such as or = ocr(~bwt2,'TextLayout' ,'Block','CharacterSet','0123456789');

3 maanden ago | 0

Answered
using OCR on a custom, discontinuous font
use cnn to make self ocr clc; clear all; close all; x = imread('ceshi.png'); y = rgb2hsv(x); v = mat2gray(y(:,:,3)); bw =...

3 maanden ago | 0

Answered
How to change all the colours in the image to black
clc; clear all; close all; I = imread('ceshi.png'); I2 = rgb2hsv(I); s = mat2gray(I2(:,:,2)); bw = im2bw(s, 0.5); fig...

3 maanden ago | 0

Answered
how to change color images
clc; clear all; close all; B = imread('image B.jpg'); C = imread('image C.jpg'); B = imresize(B,[size(C,1) size(C,2)],'...

3 maanden ago | 1

Answered
Row-wise labelling with bwlabel() and regionprops
reference resources 《计算机视觉与深度学习实战》 clc; clear all; close all; im = imread('binary image.png'); bw = im2bw(im); sz = size...

3 maanden ago | 0

Answered
how to convert 5 dcm images to 5 png images
clc; clear all; close all; % Get a list of all files in the folder with the desired file name pattern. myFolder = 'C:\Users\Ak...

3 maanden ago | 0

| accepted

Answered
How do I resize an image displayed using imagesc() in a figure?
参考:《计算机视觉与深度学习实战》 clc; clear all; close all; boatN = imread('football.jpg'); B1 = [-1 0 1; -1 0 1; -1 0 1]; B2 = [-1 -1 -1...

3 maanden ago | 0

Answered
Extracting multiple numerical values from an image
reference resources clc; clear all; close all; img = imread('demo.jpg'); J = rgb2hsv(img); s = mat2gray(J(:,:,2)); bw =...

3 maanden ago | 1

| accepted

Answered
Split a dataset into training set and test set using the cross-validation principle
please use crossvalind,reference resources such as clc; clear all; close all; % total 50 % split to 5 indices = crossvali...

3 maanden ago | 0

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