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Adding text programmatically to a figure
If you just want to put a title over multiple subplots, you can use sgtitle(). If you want text in a box with arbitrary locat...

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HSV Image Intensity Restrictions
It's easy enough to find out. rgbpict = imread('peppers.png'); hsvpict = rgb2hsv(rgbpict); % threshold at 50% V hsvpict(:,...

más de 4 años hace | 0

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How I Can read 3 MSBs in RGB image
Depends what you want the output to be. It might be simple for scalar inputs: % assume uint8 pixel = uint8(250); % using d...

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Extracting a range from a cell array.
How about x = {"a", "b", "c", "d", "e"} z = horzcat(x{3:end}) % or just z = [x{3:end}] To clarify, the expression x{3:end...

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bwlabel (Bw) function return Wrong number of Connected Objects
Try this: inputImg = imread('money.png'); % the file has to be read c = rgb2gray(inputImg); % im2gray() is from where? imshow...

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Im designing a game of battleship, but. im trying to use a code to prevent the user from placing a ship out of bounds
I generally can't stand things written to be so tediously interactive like this, but maybe this is a simplified start. % i as...

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How i can read Red channel in 3 RGB Image
This is how you can get the red channel % an RGB image rgbpict = imread('peppers.png'); % just the red channel R = rgbpict(:...

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Why my value of MSE and PSNR have 3 values?
The images are RGB. The results are 1x1x3 -- one result per channel. If your goal were to get a single value for the whole ima...

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How to select an area within a range around identified region?
Maybe this is a start radius = 5; % specify some radius % an image and a mask of some sort A = imread('eight.tif'); imshow...

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create multi mask using ROI Freehand
The way you're doing this is causing objects to be overwritten. You can use the same method I showed in your prior question. ...

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how to recoup a watermark image !
Try this. mat = imread('cameraman.tif'); % host image watermark = imread('cameraman.tif'); % payload image B2 = im2bw(water...

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How to edit the font size and font name of y-labels while using the toolbox of addaxis?
It seems addaxis() is a bit in need of maintenance. The object handles are supposed to be stored in the userdata of the main ax...

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Someone knows why this is happening? and it work a few days ago
You have a script called polar.m which is shadowing the builtin function polar(). Change the name of that script.

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Save/Crop Figure (bmp) file without background
If you have a raster image displayed in a figure, don't save it from the figure. Use imwrite(). Doing this: A = imread('camer...

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how can i bring 2 figures together?
If you look, the two x vectors are not the same. They differ in length by 1. You can reuse the latter x if you want. Either w...

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RIO iteratively to create mask
This is a start im = imread("coloredChips.png"); numROI = 6; % create ROI objects and adjust them imshow(im); for k = 1:n...

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How to project and fit a 2D path onto a 3D surface?
Something like N = 1000; nturns = 10; rmax = pi; zscale = 0.1; zoffset = 0.5; r = linspace(0,rmax,N); th = linspace(0,n...

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how can we increase a value until we get answer
This can be simplified, but let's start with the given approach. format long alpha = [510; 310; 78; 120; 350; 490; 53; 150...

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How to read jpg in format CMYK?
If imread() can't read CMYK JPG files (as most things can't), then you'll obviously have to use something else to convert the im...

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How to extract data from a particular column of matrix?
Something like this should work: Y = A(20:3500,6);

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How can I multiply 2 signals?
Something like x = (-1 :.05 :1); % pay attention to scale and limits y = cos(2*pi*x).*exp(-5*x); % elementwise multiply with ....

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How to remove narrow cavities and passages in a binary image
Simple morphological operations should suffice. Morphological closing removes background (zero-valued) features smaller than a ...

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How to do a cycle in the graph each time of plot
You can use mod() and simple masking to avoid the loop and conditional. K_t = 750; K_r = 250; b = 5; f_z = 0.1; theta =...

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How can I transform 'line' in Binary Image to function like y=x ? How can i find coordinates of line?
Raster Image Processing You can do this by just processing the raster image as has been already described, but you'll have to d...

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How can I iterate across the opposite diagonal?
You can also do: HM = fliplr(toeplitz([6 4 zeros(1,7)])) That said, it's unclear whether you're actually intending for the out...

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Create a plot with 2 left axes and 1 right axis
I don't know how it would be done with yyaxis (if possible) There are a number of old tools on the File Exchange that still wor...

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Evaluating maxima and minima of functions of two variables
How would you solve a minimization problem on paper? If you use the symbolic toolbox, it's basically the same. syms x y D...

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Why image doesnt show correctly while reading a binary file?
The files are just literal text files with a .bin extension. The easy way to deal with that is just rename the file. If you wa...

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To find Volume under Surface
Rearrange the implicit equation and observe symmetry and intersections to simplify the task. syms x y z0 = 0; z1 = x+y-1; ...

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Inserting non zero element in diagonal position of a nonzero matrix
This isn't that much different than Benjamin's answer now that I look at it, but eh. I guess it's my own spin. This should wor...

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