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Salad Box


66 2017 이후 총 참여 횟수

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'break' in 'while' loop
Hi, I have a 'while' loop inside a 'while' loop. while %%% while %%% break end %%% sta...

1일 전 | 답변 수: 1 | 0

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Sort matrix based on values in the first row from small to large
Hi, I have a matrix M M = 39 93 143 64 36 1 2 3 4 5 I would like to sort the matrix M by v...

3일 전 | 답변 수: 1 | 0

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How to use 'center pixel' in a sliding block to represent this block using 'nlfilter'?
Hi, I am dealing with all the coloured images rather than greyscale images. So a lot of the filtering algorithms appear sligh...

15일 전 | 답변 수: 0 | 0

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To apply a median filter on a coloured image, why do I have to use 'medfilt2' on each channel separately rather than use 'medfilt3'?
Hi, I have a color image and would like to use a 9 x 9 median filter. Method A - using 'medfilt2' on each channel separatel...

16일 전 | 답변 수: 0 | 0

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How to apply a median filter on a coloured image?
Hi, I'm not exactly sure how 'median filter' works on a coloured image. I can understand how the median filter work on a b...

16일 전 | 답변 수: 0 | 0

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Sliding Neighbourhood Operation (Image Filtering)
Hi, I have a sample image and I would like to apply a 4 by 5 'sliding block' to this image. In each 4 x 5 block, I would ...

16일 전 | 답변 수: 0 | 0

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Does 'imresize' generate artificial pixel RGB values which are not contained in the original image?
Hi, I would like to know whether 'imresize' generate artificial pixel values which are not contained in the original image. ...

16일 전 | 답변 수: 1 | 0

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How to know the real row and column indices of a pixel in the image
Hi, I have an image. See below. >> fn = 'Unknown.jpg'; >> RGB = imread(fn); >> whos RGB Name Size ...

24일 전 | 답변 수: 1 | 0

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How to replace values of certain rows in a matrix?
Hi, I have a matrix "a" a = 1 1 2 2 3 3 4 4 I would like to replace the 2nd and...

28일 전 | 답변 수: 1 | 0

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Evaluation of k-means performance in terms of 'sumd'
Hi, To give a simple example: I have 4 data points p1, p2, p3, p4 (in blue dots). I performed k-means twice with k = 2 and...

약 2달 전 | 답변 수: 1 | 0

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Initial centroids selection - Kmeans
Hi, Am I allowed to choose k initial centroids that are not contained in the original data set, in another word, not using th...

약 2달 전 | 답변 수: 1 | 0

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Is there a 'value range' of INITIAL CENTROIDS for kmeans and kmeans ++?
Hi, We know that the initial centroids are randomly generated for Matlab's default 'kmeans' function. I wonder whether th...

약 2달 전 | 답변 수: 1 | 0

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How to draw circle in a 3D space?
Hi, I would like to draw 2 circles. One in plane [P1 P6 P5], the other in plane [P1 P8 P5]. RGB values of points P1, P5,...

약 2달 전 | 답변 수: 2 | 0

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Initial centroids for K-means clustering
If I have an array (i.e., 5 by 3 matrix) can serve as the initial centroids for kmeans clustering, how can I properly initialize...

2달 전 | 답변 수: 1 | 0

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How to save the image WITHOUT the white background using imwrite (advanced problem)
Hi RGB = imread('bird1.png'); figure imshow(RGB) Then I get: Then: s = size(RGB); rectangle('position',[1 1 s(2) s(...

2달 전 | 답변 수: 2 | 0

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How to add box to an image?
clear close all clc RGB = imread('bird1.jpg'); s = size(RGB); figure imshow(RGB); rectangle('position',[1 1 s(2) ...

2달 전 | 0

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How to add box to an image?
Hi I have two images ('yellow.png' and 'bird.png'). See below. How can I make a box AROUND...

3달 전 | 답변 수: 4 | 0

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Why my 'bboxes' and 'scores' variables are all empty while certainly my image contains a person?
Hi, This is my example image clearly with a person in it. I would like to use Matlab's 'people detector' to detect the p...

4달 전 | 답변 수: 2 | 1

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How to identify skin or detect human or skin in an image using Matlab (detection problem not recognition problem) ?
Hi, I would like to detect whether there is any human or just skin in an image using Matlab. It doesn't have to be the face t...

4달 전 | 답변 수: 0 | 0

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Text Analytics Toolbox seems making lots of mistakes on recognizing language and PartOfSpeech
Hi, My input is a list of VERY BASIC ENGLISH words shown below. I would like to find out the part of speech of them. k...

4달 전 | 답변 수: 0 | 0

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How to parse noun and adjective words from an array of texts
Hi I have an array (n x 1) of strings. See example below. 'I thought about illness' 'I think I associated it with fresh or ...

5달 전 | 답변 수: 0 | 0

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Any possibilities of using sortrows for strings
Hi, I have a cell named 'b' consisted of n by 1 of strings, each row in a cell is a string. See below. The 1,2,3,4 is n...

6달 전 | 답변 수: 1 | 0

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Saving texts read from edit box in GUI
Hi, I have a edit box in GUI design. This edit box is specifically for puting texts/strings in rather than numbers. So I ...

6달 전 | 답변 수: 0 | 0

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GUI editbox can't evoke a pushbotton?
Hi, I'm working on a GUI design and I created a edit box and a pushbutton. Shown in the picture below. What I woul...

6달 전 | 답변 수: 1 | 0

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Is it possible to make 'uisetcolor' integrated in GUI?
Hi I'm trying to build 'uisetcolor' into my GUI. At the moment, if I run my GUI, the 'uisetcolor' pops up in a seperate w...

6달 전 | 답변 수: 1 | 0

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How to make a colour picker similar to this one in Matlab?
Hi, Below is the screenshots for a commercial colour picker available online. The good thing about designing the colour p...

6달 전 | 답변 수: 1 | 0

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How to display multiple images (non indexed images) with different sizes in a row?
Hi Say I have 3 images and they are not indexed images therefore they don't have X, map, they only have RGB values. And th...

6달 전 | 답변 수: 2 | 0

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imshow using double or uint8 RGB values - confusing
Hi, I'm a bit confused about 'imshow' My guessing is that imshow can be used with 2 types of RGB data. RGB values are b...

6달 전 | 답변 수: 1 | 0

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How to draw a L*a*b* colour space or HSV colour space (2D)?
Hi I would like to draw the LAB or HSV colour space in 2D (see below) but I don't know how to draw it. I found some code onl...

8달 전 | 답변 수: 3 | 0

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How to understand C in pcolor? Why are specific colours not other colours coming out of certain numbers?
Hi, I'm struggling to understand C in pcolor. From the official website, https://uk.mathworks.com/help/matlab/ref/pcolor...

8달 전 | 답변 수: 1 | 0

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