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yanqi liu


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Last seen: 11일 전 2021 이후 활성

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MATLAB
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답변 있음
Training my YOLOv2 object detector failed
yes,sir,may be use yolo v3、v4 to test,such as https://ww2.mathworks.cn/matlabcentral/fileexchange/72520-yolov3-yolov4-matlab

11일 전 | 0

답변 있음
How to save an image which only display properly using imshow(grayImg,[])?
yes,sir,may be use imwrite(mat2gray(grayImg),outputFileName); and, then to check the file

11일 전 | 0

답변 있음
how can i Find a midline using two lines
yes,sir,which is the center line,is it like this? may be check https://ww2.mathworks.cn/matlabcentral/answers/1712640-how-...

11일 전 | 0

답변 있음
How to create a centerline between lines in image?
yes,sir,which is the target line,may be check this https://ww2.mathworks.cn/matlabcentral/answers/1712640-how-to-create-centerl...

11일 전 | 0

답변 있음
I am getting error in this imread statement. I don't know where it's wrong, please help, thanks
yes,sir,may be make some parameters to the function,such as re = img2coe3('./1.png', imread('football.jpg'));

11일 전 | 0

답변 있음
How to rotate an image in Matlab
yes,sir,may be rot90,such as im = imread('football.jpg'); for i = 1 : 4 im = rot90(im, 1); figure; imshow(im, []); ...

11일 전 | 0

답변 있음
Change color representation of pressure sensor data converted to images on MATLAB code.
yes,sir,may be use ind2rgb、ind2gray to get color index format to image file

11일 전 | 0

답변 있음
How to create centerline between to lines in image
yes,sir,may be check the center line,such as fullFileName = 'https://ww2.mathworks.cn/matlabcentral/answers/uploaded_files/9885...

11일 전 | 0

답변 있음
"Dot indexing is not supported for variables of this type." error in reading VideoReader Object by its index?
yes,sir,may be use VideoReader to make video to frame image file list,and then use the images to analysis,such as function nFra...

11일 전 | 0

답변 있음
How to save image from dataset in MATLAB
load matlab1.mat %% create grayscale shapes that resemble the data [numImages, lenImage] = size(Dataset1000); Dataset1000 = r...

29일 전 | 0

답변 있음
Measure Euclidean Distance of mask in crack image
yes,sir,may be use bwlabel and regionpropers to get the center and BoundbingBox of two object,then compute the average distance ...

29일 전 | 0

답변 있음
help ! how do i fix this error : Error using .* Integers can only be combined with integers of the same class, or scalar doubles.
im=imread('football.jpg'); im=imresize(im,20/size(im,1),'bilinear'); R=im(:,:,1); G=im(:,:,2); B=im(:,:,3); Y=0.299*R + 0.5...

29일 전 | 0

답변 있음
How to repair the vertical lines ?
yes,sir,may be use image pixel peaks to find line,such as img = imread('https://ww2.mathworks.cn/matlabcentral/answers/uploaded...

29일 전 | 0

답변 있음
How to get location of central frequency and poles in FFT
yes,sir,may be use Butterworth band stop filter to location the bright area

29일 전 | 0

답변 있음
license manager error-10
yes,sir,may be use student version or use college public license to update

29일 전 | 0

답변 있음
I have a jpg image of a wetland using RGN filter and would like to determine the % "colour" from this image. Any ideas? I'm very much a novice.... Thanks!
yes,sir,may be use color enhance to process,such as img = imread('https://www.mathworks.com/matlabcentral/answers/uploaded_file...

29일 전 | 0

답변 있음
count rectangular and circles
yes,sir,use regionpropers to find difference between rectagular and circle, may be use: Circularity、BoundingBox such as bwi ...

약 1달 전 | 0

답변 있음
Set to zero values in matrix in between two lines
yes,sir,may be use mask to process,such as width=1000; height=200; A=rand(height,width); % create a random matrix/image fi...

약 1달 전 | 0

답변 있음
Local Thresholding in blocks error
yes,sir,may be check the loop process,such as filename = 'football.jpg'; S = 3; IM=imread(filename); if size(IM,3)==3 ...

약 2달 전 | 0

답변 있음
a video in which I have to get the exact motion of a moving object and calculate the coordinates of that object before and after the movement.
yes,sir,may be use image background and frame diff,such as then,we can diff background from video,and get

약 2달 전 | 0

답변 있음
How to resize a specific part of an image?
yes,sir,may be make the target thin,such as im = imread('https://www.mathworks.com/matlabcentral/answers/uploaded_files/949514/...

약 2달 전 | 0

답변 있음
problem with videoWriter not closing (2)
yes,sir,may be use fclose('all') to make all handler close

약 2달 전 | 0

답변 있음
Data reduction or resize function for imagesc plot
yes,sir,may be use pca to get data dimension reduce,and plot in two or three space

약 2달 전 | 0

답변 있음
read specific values and ignore them using fread
yes,sir,may be use loop to make it,but the result should be check,such as fid=fopen('Alien_Message'); im_1=fread(fid,251,'ui...

약 2달 전 | 0

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답변 있음
how can i detect sky
yes,sir,for more image,may be use DeepLearning to segment but just for this image,we can use some simple method,such as im = i...

약 2달 전 | 2

답변 있음
How do I compute for the area and diameter of each raindrop and make graph analysis
yes,sir,may be use ar = sum(cat(1, stats.Area)); to get the sum area

약 2달 전 | 0

답변 있음
Which interpolation technique should I use for time series analysis of Landsat data?
yes,sir,may be use lstm、bp or svm to make regress application on time series data

약 2달 전 | 0

답변 있음
I am currently trying to plot the radon transform of f(x,y)=cos(ax+by)
yes,sir,may be use fmesh to plot,such as syms x y fmesh(cos(x+y))

약 2달 전 | 0

답변 있음
How to detect faces without using vision.CascadeObjectDetector
yes,sir,may be use ycbcr color segment to identify face as simple method if possible,can you upload your image to analysis?

약 2달 전 | 0

답변 있음
Imregtform for only part of the image
yes,sir,may be use Kalman filter to track target object,such as https://www.mathworks.com/help/releases/R2019a/vision/examples/...

약 2달 전 | 0

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