Answered
How to find the "true" perimeter of objects in a binary image?
One possible way is like this: % Example binary image with 3 non-zero pixels img = false(5); % Use zeros(5) if you pref...

7 years ago | 0

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Answered
请帮助我将OpenCV矩阵乘法转换为MATLAB
Your code is fine, it's just rounding error. Note that the differences are smaller, by many orders of magnitude, than the larges...

7 years ago | 0

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Answered
Matrix Dimensions Must Agree Error, Error using +
有必要在| f |的表达式中放置空间这样|+|和| - |被解释为二进制操作员，而不是一般...

7 years ago | 0

年代ubmitted

年代inkhorn-Knopp algorithm for matrix normalisation
Normalises a matrix so that the row and column sums are all unity

7 years ago | 1 download |

Answered
subscripted assignment dimension mismatch
You do not say how |rowspan| and |colspan| are calculated, but the problem is that they do not match the size of |R1| (or the ot...

7 years ago | 0

Answered
Adding constant if the pixel intensity is greater than 50?
Assuming your image is stored in a variable called |img|: highValues = img > 50; img(highValues) = img(highValues) + 200...

7 years ago | 0

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Answered
How do I get a median filtered image?
If you have the Image Processing Toolbox, you can use .

7 years ago | 1

Answered
which one is faster? defining a variable as a global variable or as an input of function?
It is usually a bad idea to use global variables. There are many papers, going back over 40 years or more, explaining why. One e...

7 years ago | 2

Answered
Creating discrete variables within a for loop
I'm not quite sure what you want to do, but it feels like mig...

7 years ago | 0

Answered
How to run mex files in MATLAB?
I've found to be very helpfu...

7 years ago | 0

Answered
rounding problem after decimal point in image processing
If you convert to class uint8 you lose everything after the decimal point. Is that perhaps the problem? If so, don't cast to uin...

7 years ago | 0

Answered
How to extract 24 binary images from one RGB image which is of 24-bit/pixel color depth?
尝试以下操作：％示例RGB 24位图像IMG = imread（'Peppers.png'）;％使二进制数组阵列对应于EA ...

7 years ago | 0

Answered
Why does translation with imwarp + affine2d-object enlarges the object?
The reason for the enlargement is the interpolation rule that |imwarp| uses - 'linear' by default. Because the image is binary, ...

7 years ago | 0

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Answered
Ignoring empty arrays when using arrayfun on a structure?
Try this (not yet tested): west_east = arrayfun(@(d) ~isempty(d.TTA) && 110 >= d.TTA(1) && d.TTA(1) >= 70, data); data =...

7 years ago | 0

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Answered
在图像去噪下面的代码是如何工作的?
To understand this properly, I think you may need to consult the author of the

7 years ago | 0

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Answered
How can I convert back correctly a 2D matrix to 3D one?
First, the resulting array *will* be the same as the original. Here's a demonstration (making the arrays rather smaller to avoid...

7 years ago | 0

Answered
年代aving structures from each iteration into a structure? Good idea? How?
Not sure what you've tried already and had problems with, but I'd have thought it was as simple as putting the results into stru...

7 years ago | 0

Answered
How to compare the intensity of the central pixel with its 8 neighboring pixel in an image? Can anyone help me with its matlab code? Also I have to save my central pixel if its intensity value is greater than other pixels.
一些答案应该有所帮助。

7 years ago | 0

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Answered
Gaussian and Laplacian Random Variables
您可以使用| randn |从高斯分布中生成随机值功能。这个

7 years ago | 0

Answered
How to use a while loop with irregular step?
You can do it with a |for| loop very simply: for i = [1,2,3, 5,7,9, 12,15,18] % < process using i > end By the w...

7 years ago | 0

Answered
Perform conv2 on a batch of images
|convn| does exactly what you describe, given a 3-D array and a 2-D kernel.

7 years ago | 1

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Answered
Is it possible to create a histogram with fractional entries for each bin?
If all the samples are positive integers, and the bins are all centred on the positive integers and with unit width, as in the i...

7 years ago | 0

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Answered
Can anybody help with persistant errors? (Matlab beginer)
The assignment to |wPtr| in the first line of the function has been commented out. This means that no value has been given to th...

7 years ago | 0

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Answered
How to interpolate and leave NaNs if long gaps?
I'd adopt a slightly different approach. I'd quantize the times first to get an array of just the times you want, then interpola...

7 years ago | 2

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Answered
Can a function which works well for grayscale images be applied for RGB images also?
通常，是的。您可以依次将其应用于R，G和B平面，然后重组结果，或者您可能...

7 years ago | 0

Answered
有关图像重采样的问题
It's just, I think, because we are told near the start of the article: _An important factor is that the sampling intervals ar...

7 years ago | 0

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Answered
Gray(scale) image with a colormap - how to turn into double?
This works OK: [imInd, cmap] = imread('10.bmp'); imGrayUint8 = ind2gray(imInd, cmap); imGrayDouble = im2double(imGray...

7 years ago | 0

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Answered
访问3D数组中的索引值
[rows, cols] = ndgrid(1:size(Z,1), 1:size(Z,2)); Zindex = sub2ind(size(Z), rows, cols, ind); s = Z(Zindex);

7 years ago | 2

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Answered
How can I use 'impixelinfo' function?
Perhaps you don't have the Image Processing Toolbox (IPT), or perhaps you have a very old version (before R14). Give the command...

7 years ago | 0

Answered
在循环的第一次迭代中，如何将值分配给变量，而在其余迭代中，变量的值应该是脚本的结果？
Make y an argument to your function, and also remove unnecessary code: function y = fcn(v, u, y) y = y+(u-v); end ...

7 years ago | 1