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# Chen Zhu

Active since 2017

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Question

How to add more lables to x axis?
<</matlabcentral/answers/uploaded_files/94395/C1to1.jpg>> In this plot, the X axis does not clearly indicates the values. The...

5 years ago | 1 answer | 0

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Question

How to get more precise cdf pdf plot?
sample1=[...]; sample2=[...]; [p,x] = hist(sample1); [p2,x2] = hist(sample2); plot(x,p/sum(p),'r'); %P...

5 years ago | 1 answer | 0

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Question

Draw Pdf and Cdf for the given data
I am new to MatLab. I have an array of data such as sample1=[0.7,1.2,1.5,2.0,1.3,1.7,2.2,2.5,3.6, ....]; I want to plot...

5 years ago | 1 answer | 1

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Question

Switch X and Y axis in a histogram
hist(a) <</matlabcentral/answers/uploaded_files/74813/darksunny.jpg>> How to switch the X and Y axis? Currently X represen...

5 years ago | 2 answers | 0

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Question

Writting arrays into a csv file
I have a for loop, I want to write the array generated in the for loop into a csv file. for k = 1 : numberOfImagesToProcess ...

5 years ago | 1 answer | 0

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Question

Get Color histogram of an image
Hi, How can I get one color histogram of an image? I don't want three RGB histograms. I want one histogram. X-axis represents...

5 years ago | 1 answer | 0

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Question

How to substract an image?
rgbImage = imread(fullFileName); I want to only get the top 20% of the image. How can I do it? For example, for this image...

5 years ago | 1 answer | 0

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Question

Using color channel to find blue sky in a image.
I want to design a angirithm to determine if an image has blue sky, gray sky, or no sky. I want to use color channel and assumes...

5 years ago | 1 answer | 0

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Question

Invalid MEX-file 'D:\sky_detector\toolbox\bin\gco_matlab.mexw64': The specified procedure could not be found..
Hi, I am trying to run a sky detector demo at http://www.cse.cuhk.edu.hk/~leojia/projects/weatherclassify/sky_detector.zip ...

5 years ago | 1 answer | 0

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Question

I am working on image matting use the code in https://www.mathworks.com/matlabcentral/fileexchange/31412-learning-based-digital-...

5 years ago | 1 answer | 0