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Last seen: 3 días hace Con actividad desde 2017

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Can I define or change the direction of 'reshape'?
Hi, I have a sample image (below). Generally if I use 'reshape' to change the RGB from n by m by 3 to n*m by 3, the reshape...

3 días hace | 1 respuesta | 0

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What is the range of L (lightness) when plotting HSL bi-cone colour space?
Hi, I am trying to plot the HSL bi-cone colour space using Matlab. From google search, there are many online HSL images look l...

14 días hace | 1 respuesta | 0

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Pregunta

What is the code for this cosine symbol?
Hi, How to write the cos-1 in Matlab? Is it to only use 'cosd' or 'cosd' but with some to represent -1? Has anyone seen the co...

15 días hace | 1 respuesta | 0

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How to generate all the possible data points in this 2D triangle?
Hi, I have a blue triangle in a 2-D V-S space. How can I know the [s v] values of all the possible points within the bl...

17 días hace | 1 respuesta | 0

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How to know how much I rotated a figure?
Hi, Matlab plotted my data points like this: Then I manually rotated the figure to this: Is there a way to record the...

17 días hace | 1 respuesta | 0

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When plotting in 3D space, what to do to make 1 unit look the same length on each axis?
Hi, I have a matrix of data points 'xyz' and I plotted them in the 3D X, Y and Z space. Notice that 1 unit on the Z axis (...

19 días hace | 1 respuesta | 0

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Pregunta

How to read '.webp' image file
Hi, I have a couple of image files in '.webp' format, how to read them in Matlab?

20 días hace | 2 respuestas | 0

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Pregunta

All the combinations for 3 variables
Hi, I have 3 variables, each of which is an array containing differnet numbers of elements. If I take a simple case as an exam...

22 días hace | 1 respuesta | 0

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Hue in HSV Color Space
Hi, In the HSV colour space, if I have 4 sample points with hue angle of [0, 90, 180, 270], how can I convert them so that...

22 días hace | 1 respuesta | 0

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Pregunta

How to generate the hsv cone graph using Matlab?
Hi I saw the hsv cone graph on Mathworks webpage https://uk.mathworks.com/help/images/understanding-color-spaces-and-color-...

25 días hace | 1 respuesta | 1

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Pregunta

How to apply the white point when converting xyz to upvpl using 'makecform'?
Hi, I have a sample data point with XYZ values shown below. XYZ = [29.5400 25.2800 19.5900]; I would like to convert XY...

25 días hace | 0 respuestas | 0

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Determine positions of projected points onto an ellipse
Hi, I have a set of data points (blue dots below) and I woule like to project them onto an ellipse (with known a, b, x0, y0, an...

alrededor de 2 meses hace | 3 respuestas | 0

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Projecting a dataset on an ellipse
Hi, I fit an ellipse (in green) to my dataset (white dots). I'd like to project each data point on the ellipse (or shifting ...

alrededor de 2 meses hace | 1 respuesta | 0

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Can't get the legend right
Hi I plotted a few things on the chromaticity diagram below. h1 to h3 are to plot three black lines, h4 is to plot dataset A,...

alrededor de 2 meses hace | 1 respuesta | 0

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Pregunta

Munsell 100 Hue Test
Hi, Has anyone got the code for the Munsell 100 Hue Test in Matlab?

4 meses hace | 0 respuestas | 0

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How to rotate or mirror the contents in the figure with axes?
Hi, I generated a plot(?) with axes on (see below) but it doesn't look quite right. The above plot maybe classed as gca? ...

4 meses hace | 1 respuesta | 0

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Pregunta

Hi I would like to generate a simple mask image from scratch in Matlab if it is possible. It has the following criteria: t...

4 meses hace | 1 respuesta | 0

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How to know the exact colour after a level of transparency being applied?
Hi, I am filling an area with a specific colour, say [255 0 0 ], but with a level of transparency, say 0.5. So the actually col...

4 meses hace | 1 respuesta | 0

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Pregunta

How to fill a circle with different sized circles
Hi I would like to create something very similar to this with packcircles. All I have is the background colours and foreground...

4 meses hace | 1 respuesta | 0

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Pregunta

Matlab User Interface - how can I fit more script in one line?
Hi there, In the Matlab's script interface, there is a vertical line (see below where the arrow is pointing at) serving as th...

5 meses hace | 1 respuesta | 0

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Respondida
Can anyone please send the superpixel segmentation code used in image processing
https://uk.mathworks.com/matlabcentral/fileexchange/69805-superpixel-based-fast-fcm-for-color-image-segmentation

5 meses hace | 0

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Matlab Online - change of the current folder
Hi, For the online version of the Matlab, how to change the current folder to my local folder?

5 meses hace | 1 respuesta | 0

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Solving the linear equation
Hi, For a simple explanation, an example is 21 = m x 7. m = 21/7 = 3. If I use the m I obtained to time 7, it should be equal t...

8 meses hace | 2 respuestas | 0

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Detect ColorChecker chart in an image
Hi, https://blogs.mathworks.com/steve/2020/09/30/how-to-detect-an-x-rite-colorchecker-chart/ I used the link above for detec...

9 meses hace | 1 respuesta | 0

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When chromaticity diagram meets a line
Hi, I used Matlab to plot a chromaticity diagram, then I plotted a line with a function y=ax+b with known a and b. I am jus...

10 meses hace | 2 respuestas | 0

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How to generate colour blindness confusion lines?
Hi, How are the confusion lines (red lines) generated in the image below?

10 meses hace | 0 respuestas | 0

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box detection/rectangle detection
Hi Here is my sample image. How to automatically grab/crop/know the region of each colour square without using 'get rect' fun...

alrededor de 1 año hace | 2 respuestas | 0

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Using 'getrect' on the main design window - App Designer
Hi Below is my main design window. As you can see, within the blue box it is an Image Object, not an Axes Object. There is n...

alrededor de 1 año hace | 1 respuesta | 0

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ButtonDownFunction on an image in App Designer
Hi I haven't really figured out how to use the 'BottonDownFcn' on an image in the new App Designer. Here is what I would li...

alrededor de 1 año hace | 1 respuesta | 0

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How to display an image within the figure in App Designer?
Hi, I used to work with GUI and I am very new to the 'App Designer'. As you can see here I have created an interface. ...

alrededor de 1 año hace | 1 respuesta | 0

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