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yanqi liu


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Last seen: 3 days ago Active since 2021

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MATLAB
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Answered
how to assign the output of trained Pattern Recognition Neural Network to a class for each instant
sir,may be find the max index to get the result,such as % assign the max value of the array to a specified class and rest value...

2 days ago | 0

Answered
Split image by the label and drop to the subfolder
clc; clear all; close all; datapath='C:\Users\FarHad\Downloads\Compressed\ODIRK\preprocessed_images'; % Two-class Data path m...

2 days ago | 0

Answered
Geotif image appears darker
yes,sir,may be use imtool to adjust data

3 days ago | 0

Answered
Detect voids in FRC by Image Processing Toolbox
sir,may be upload image file to do some analysis

3 days ago | 0

Answered
How to do a maximum rank filter
clc; clear all; close all; M = [203 167 233 113 222 232; 79 176 39 27 22 46; 135 191 211 256 102 67; 42 115 137 ...

3 days ago | 0

| accepted

Answered
How I can read image with PPM format without imread and design PPM reader ?
yes,sir,may be upload the ppm file to do some analysis

3 days ago | 1

Answered
how to calculate texture parameters
yes,sir,may be use graycomatrix、graycoprops to do texture analysis

3 days ago | 0

Answered
photos to movie
yes,sir,let us use the imgFilePath jpgs to avi file,such as function Images2Video(imgFilePath, filename_out) if nargin < 2 ...

3 days ago | 0

Answered
reduce cell size of bivariante diagram
clc; clear all; close all; BC= [ 0 0 0.149 0.524 0.717 0.268 0.275 0.340 0.330 0.943 0.623; 0 0 0.402 5.518 9.337 4.833 1....

3 days ago | 0

Answered
Exporting images (png) through export_fig - painfully slow
yes,sir,may be use getframe or print,such as f=getframe(gcf); f=frame2im(f); imwrite(f, './result.tif'); or print(gcf,'-dp...

3 days ago | 0

Answered
Error while performing the operation but not while reading the images in folders.
sir,may be upload encode_HTJ2K.m to do some analysis or check the image dim if ask for gray image,please use rgb2gray to make i...

3 days ago | 0

Answered
Image labels in json
sir,if the json is use to rectangle,may be read the json and use filename to gen table of matlab,such as data = load('rcnnStopS...

4 days ago | 0

Answered
Customization of performance function for Neural Network Time-Series Prediction and Modeling in which the target is normalized by external time series values
sir,may be it is not suitable,if the inputlayers has rescale,such as transfer to [0, 1],may be the result can compute

4 days ago | 0

Answered
cuDNN error on zbook when running R-CNN Example
yes,sir,may be check the cuda and cudnn config,such as

4 days ago | 0

Answered
I want to do line tracing with a drone.
yes,sir,may be should save the points,and plot in each frame may be upload some image to analysis

4 days ago | 0

Answered
How to downsize image in x and y direction?
yes, sir,may be use clc; clear all; close all; img = imread('https://ww2.mathworks.cn/matlabcentral/answers/uploaded_files/811...

4 days ago | 0

Answered
reading bands in .tiff file.
yes,sir,may be use entropy = mat2gray(entropy);

4 days ago | 0

| accepted

Answered
Resize the given image breadthwise by pixel deletion. The output is required to have half as many columns as the input
yes,sir,please use Image Analyst method,such as img2 = img(:,1:2:end,:);

4 days ago | 0

Answered
box detection/rectangle detection
yes,sir,use Image Analyst suggest method,can get clc; clear all; close all; filename = 'https://www.mathworks.com/matlabcentra...

4 days ago | 0

Answered
question about R-CNN stop sign detection
sir,i think 1. first what this part accutly doing ?, how it detect the stop sign before the training ? % Only keep the i...

5 days ago | 1

Answered
Prebuilt OpenCV interface freezes up
sir,may be use [ocvMat,ocvArray] = CreateMat(100, 100);

5 days ago | 0

Answered
Unable to perform assignment because the size of the left side is 465-by-680 and the size of the right side is 482-by-680.
sir,may be use the matrix data modify,such as maxr = max([size(new_imgi,1) size(new_imgq,1)]); if size(new_imgi,1) < m...

5 days ago | 0

| accepted

Answered
Read a color image as input. In addition, apply following concepts to enhance the given input image using MATLAB.
sir,may be its a hw,and need inpute the demo image,so just write some function,such as i. Compute histogram and intensity imre...

5 days ago | 0

Answered
How to detect empty spaces/regions in an image
yes,sir,may be use some process to get the background white space clc; clear all; close all; img = imread('https://gcdn.pbrd.c...

5 days ago | 0

| accepted

Answered
How to detect multiple stop sign using RCNN?
yes,sir,please use [bboxes,scores] = detect(detector,I,'Threshold',0.1); to get more rects,and then filter by score value

5 days ago | 0

Answered
Invalid training data. The output size (1000) of the last layer does not match the number of classes (5).
yes,sir,may be modify the classify layer,such as classificationLayer("Name","ClassificationLayer_predictions","Classes",params....

5 days ago | 0

Answered
non-uniform illumination - Scenes are changing!
sir,may be do some image registration to register images

6 days ago | 0

Answered
How I can develop this segmentation codes ? I am so close to exact shape
sir,use the code at 《Detection-of-Breast-Cancer-using-Neural-Networks-master》 the result is

6 days ago | 0

Answered
Error during post alignment of cone beam data using the ASTRA toolbox
sir,may be disp(proj_geom) to check proj_geom value

6 days ago | 0

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