# Kyle Wang

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**Content Feed**

Question

Normalization of gradient image

https://au.mathworks.com/help/images/ref/imgradient.html#bthgcil-method imgradient does not normalize the gradient output. If t...

4 years ago | 1 answer | 0

### 1

answerQuestion

Split training images based on label in csv sheet

I have collected 1000 images to study deep learning. These images are stored in a single folder, and they have sequential names ...

5 years ago | 1 answer | 1

### 1

answerQuestion

How to distribute Matlab tasks to different PC in same network?

Background: I have an exe that processes image and write out result as a single txt file. To process, for example 500, images, I...

6 years ago | 1 answer | 0

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answerQuestion

Matlab 2016a crashed by calling python function

OS: windows 10 64bit Matlab: 2016a 64bit Python: Enthought Python, downloaded from <https://store.enthought.com/downlo...

7 years ago | 1 answer | 0

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answerQuestion

Curve fitting using custom model

Given set of x and y, how can I solve the parameter a, b and c in the model y = a * x^b + c to best fit the given data? ...

8 years ago | 2 answers | 0

### 2

answersQuestion

how to make unequalled axis interval

I have a large number of data ranging from 0 to 20. However, most of these data are clustered between 0 to 5, which means the da...

8 years ago | 0 answers | 0

### 0

answersQuestion

Change a specific axis back panel color

I understand the command set(gca, 'color', 'k') allows different color of ALL axis back panels. I would like suggestions to chan...

8 years ago | 1 answer | 0

### 1

answerQuestion

A statistical plot demonstrating quantity and std (or mean)

What kind of statistical plot do you think can demonstrate both the quantity and std (or mean)? For example, I have a datase...

8 years ago | 1 answer | 0

### 1

answerQuestion

Create image axis with the origin in the centre

Dear expert, I'm struggling at making a boxed axis around an image with the custom axis tick labels as seen in the sample. Th...

8 years ago | 1 answer | 0

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answerQuestion

Matlab subplot equivalent in C++

In Matlab, I used subplot command to plot multiple figures in a single window. These figures include 2D imagesc, 3D surf with li...

8 years ago | 0 answers | 0

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answersQuestion

Patch an image with lots of holes

Given the binary attached, I'm look for a way to patch those white part without using contourf function. My routine is: bwbo...

8 years ago | 0 answers | 0

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answersQuestion

Reconstruct contourf image from triangle strips

Using the method described in http://undocumentedmatlab.com/blog/hidden-hg2-plot-functionality we can easily access to tri...

8 years ago | 0 answers | 0

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answersQuestion

Contourf with transparent background overlapped on other image

I used contourf to generate a big image of a hill sitting in the middle surrounded by gray background (level = 5). I'm wondering...

8 years ago | 0 answers | 0

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answersQuestion

2D image in 3D plot with partial transparency

I used surf to plot a 2D matrix as a 3D model, then I want to place imagesc(matrix) on top of this 3D model.Moreover, I want to ...

8 years ago | 0 answers | 0

### 0

answersQuestion

Axis color in 3D plot

Setting boxstyle on, we can have a box styled axis in a 3D plot. However, set(gca, 'color', [1 1 1]) only affects the back axis ...

8 years ago | 0 answers | 0

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answersQuestion

Align text in two lines with respect to a location

Say, I have two strings 'a = 2' and 'bbb = 641', now I display them in a column using the command display(['a = 2', char(10...

8 years ago | 1 answer | 0

### 1

answerQuestion

Source code for Matlab surf plot

I created a surf plot, then use "shading", "camlight" and custom "colormap" to make it look great. In the next step, I would lik...

8 years ago | 2 answers | 0

### 2

answersQuestion

Change axis gridline line without affecting ticks and labels

The following codes produce a sponge-cake shaped object: img = zeros(100,100)+5; img(1,:)=0; img(end,:)=0; img(:,1...

8 years ago | 0 answers | 0

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answersQuestion

Draw axis on 3D-object surface

The following code produces a 3D box-surface with a bar in the middle: img = zeros(100,100)+5; img(1,:)=0; img(end,:)...

8 years ago | 1 answer | 0

### 1

answerQuestion

Discrete color scale in 3D plot

The following code produces a strip in the middle of a flat base. How can I adjust the color bar so that I can use only one colo...

8 years ago | 1 answer | 0

### 1

answerQuestion

3D mesh/surf plot puzzle

The following codes produces a 2D image and its corresponding 3D demonstration. However, the pixel in the 2D image as a square b...

8 years ago | 1 answer | 0

### 1

answerQuestion

Threshold calculation without "if else"

Given following logic T=1, if x < m1 T=2, if x >= m1 && x < m2 T=3, if x >= m2 && x < m3 T=4, if x >= m3 x is a...

8 years ago | 2 answers | 0