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li yan


Last seen: 2 years ago |  Active since 2014

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Question


how to index a cell array
Hi, I encountered a Matlab problem again. I want to access all struct field elements, which is an element of a cell array, at on...

6 years ago | 1 answer | 1

1

answer

Question


Can I view the source code of auto driving toolbox
I'm interest in auto driving, and I find that matlab 2018 is published with auto driving toolbox. I want to learn the source cod...

6 years ago | 1 answer | 0

1

answer

Answered
when i read a image in matlab i face this error and the values of image is not shown (Warning: Image is too big to fit on screen; displaying at 67% > In images.internal.initSize (line 71) In imshow (line 328) In InputFeature (line 5) )
It seems correctly, the first line should be *clear all;* 1. You should verify that the image is existing; 2. Is the img ...

6 years ago | 0

| accepted

Question


why I cannot list specify files with function dir
I want to list all special files with specified extensions, such as all *.jpg files. I cd the matlab to the current folder, and ...

6 years ago | 2 answers | 0

2

answers

Question


how to calibrate synchronously radar and camera
As we all know that the synchronous calibration of radar and camera is the key step in ADAS system. Before collecting data of ra...

6 years ago | 0 answers | 0

0

answers

Question


why the plot curve is not smooth as the fitted curve
I fitted a Quadratic curve, such as f = fit(x,y, 'ploy2'); If I plot the fitting curve plot(f, x, y) plot(f, x, y)...

7 years ago | 1 answer | 0

1

answer

Question


my colorbar exponent mark is located at bottom
<</matlabcentral/answers/uploaded_files/49488/%E9%94%99%E8%AF%AF.png>> yeah, the exponent mark is at the bottom right instead...

8 years ago | 1 answer | 0

1

answer

Answered
who to replace a row in matrix ?
you just need to do like this B(1,:) = A(1,:);

8 years ago | 3

Answered
how can i set an images pixels to black ?
I(I > 0.5) = 0;

8 years ago | 0

Question


i'm confused about the function imnoise
I debuged the function imnoise to add Gaussian noise. I entered following code f = zeros(255); noisedImg = imnoise(f...

8 years ago | 2 answers | 0

2

answers

Question


can matlab move a plot curve to a special position
I want to plot an image data of a row, and then let the curve be holded on the image at this row. The result should look like th...

8 years ago | 0 answers | 0

0

answers

Question


Matlab cannot read the tiff image
Matlab sometimes gives a warning when running the imread function to read a *TIFF* image. <</matlabcentral/answers/uploaded_f...

8 years ago | 2 answers | 0

2

answers

Question


how to plot a graph like this
<</matlabcentral/answers/uploaded_files/22006/%E6%8D%95%E8%8E%B7.PNG>>

9 years ago | 1 answer | 0

1

answer

Question


How can I use imfindcircles function to find circle centers without sorting
I used imfindcircles to find circles in an image, but the circles found are also sorted based on the strgenth of the circles! I ...

9 years ago | 3 answers | 0

3

answers