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Feeds
Domanda
Detect watermark text if exists
Hi I would like to remove images that contains watermark text. Is there any simple way to check whether there's a watermark in t...
quasi 5 anni fa | 0 risposte | 0
0
risposteDomanda
Character for "ENTER"
I want to break a loop by pressing ENTER key. What character does ENTER key represent? while (1) if strcmp(get(gcf,...
oltre 8 anni fa | 1 risposta | 1
1
rispostaDomanda
Motion trajectory of an occluded object
How to find the motion trajectory of an object which is partially occluded in a video sequence? For example in the 2 frames belo...
oltre 8 anni fa | 0 risposte | 0
0
risposteDomanda
Convert type while keeping values
How to convert the type of an array while keeping the value of all elements? For example, A = [200 150 30] in uint16 to B = [20...
oltre 8 anni fa | 1 risposta | 0
1
rispostaDomanda
How to add images to data points
How do I add images to data points just like adding text? labels = [1:2] c = cellstr(num2str(labels)); gscatter(X, ...
quasi 9 anni fa | 1 risposta | 0
1
rispostaDomanda
Reduce data dimension using PCA
pca() outputs the coefficient of the variables and principal components of a data. Is there any way to reduce the dimension of ...
quasi 9 anni fa | 1 risposta | 0
1
rispostaDomanda
Execute a list of functions
How do I store a list of user-defined function in an array and execute it in a loop one by one? [d] = func1(a), [e] = f...
circa 9 anni fa | 2 risposte | 0
2
risposteRisolto
Pizza!
Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...
circa 9 anni fa
Domanda
Unable to Install OS Generic Video Interface Support Package
Matlab version: R2015b (student version) with Image Acquisition Toolbox installed Running Matlab on Windows 8.1 (Windows To ...
oltre 9 anni fa | 0 risposte | 0
0
risposteDomanda
Showing Matlab output command on Visual Studio using Matlab Engine
I use Matlab engine to run below matlab script on Visual Studio. % test.m for i=1:30 fprintf('i = %d\n', i); ...
oltre 9 anni fa | 0 risposte | 0
0
risposteDomanda
Array of 1 and 0 to decimal
How to convert array with 1's and 0's (array A) to decimal (array B)? A = [1 0 0 1 0 0 1 1; 0 0 0 0 1 1 1 1; 1 0 1 0 1 0 1 ...
oltre 9 anni fa | 2 risposte | 0
2
risposteDomanda
Rotation of orthogonal projection
I have a depth image (x,y,z = pixel value). I project the image into top and side views: for i = 1:rows for j = 1:cols...
oltre 9 anni fa | 0 risposte | 0
0
risposteDomanda
Number of non-zero element
I have n-number of arrays, I want to find the total non-zero element at a location. For example there are three arrays as follow...
oltre 9 anni fa | 1 risposta | 0
1
rispostaDomanda
Depth Image Segmentation Using Depth Threshold
Depth threshold can be used to extract a foreground (e.g a hand) when there's a gap between a foreground and it's background. In...
oltre 9 anni fa | 1 risposta | 1
1
rispostaDomanda
Foreground Detection Using GMM on Depth Images
I used vision.ForegroundDetector() to detect foreground on RGB video frames. The input of step() is from the vision.VideoFileRea...
oltre 9 anni fa | 1 risposta | 0
1
rispostaDomanda
Intersect() Problem when none of the pixels overlap
When I used intersect() to find the intersection between A (red) and B (blue), I failed to get any because the pixels don't over...
quasi 10 anni fa | 1 risposta | 2
1
rispostaDomanda
Removal of noises at edges (2)
How can I get rid of the unwanted pixels circled in red in the image below? <</matlabcentral/answers/uploaded_files/43196/arm...
quasi 10 anni fa | 1 risposta | 0
1
rispostaDomanda
Removal of noises at edges
I have a grayscale (value 0-255) image with background pixel equals 0. I am trying to remove noises at the border between the fo...
quasi 10 anni fa | 2 risposte | 0
2
risposteDomanda
Padding border of a non-uniform region with a value
I would like to add one-pixel padding to the border of a non-uniform region. Instead of looping each pixel and check its 8-pixel...
quasi 10 anni fa | 0 risposte | 0
0
risposteDomanda
Separate region by an equation
How to separate a region by an equation. For example I want to find the region greater than the equation y = mx + c. <</matla...
circa 10 anni fa | 0 risposte | 0
0
risposteDomanda
Normalize image orientation and scale
I want to normalize the orientation and scale of these images before I do a similarity measure. How can I achieve this using PCA...
circa 10 anni fa | 1 risposta | 0
1
rispostaDomanda
Find turning point in data
How to get data gradient and how to locate significant changes of the gradient? I'm trying to locate the first "turning point" o...
circa 10 anni fa | 1 risposta | 0
1
rispostaDomanda
Counting pixel at an angle without rotating image
How to count the pixels along the line (red) that is perpendicular to the major axis (blue) of a region, without rotating the im...
circa 10 anni fa | 1 risposta | 0
1
rispostaDomanda
How to get a region from points
Below is a scatter plot from array that I get using boundary(). How can I get a region so that I can use regionprops() to find t...
circa 10 anni fa | 1 risposta | 0
1
rispostaDomanda
Exclude last sample as peak despite being the maximum
The first sample is excluded despite being the maximum in findpeaks(). How to exclude the last peak? <</matlabcentral/answers...
circa 10 anni fa | 1 risposta | 0
1
rispostaDomanda
Minimum y-value in each column
How to find the first y value (in red) efficiently in each column of the image below? <</matlabcentral/answers/uploaded_files...
circa 10 anni fa | 1 risposta | 0
1
rispostaDomanda
The fastest way to find local minimum
What is the most efficient/fastest way to find the circled local minimum below, the lowest minima between two highest peaks? The...
circa 10 anni fa | 1 risposta | 0
1
rispostaDomanda
Finding Special Feature in 3-D points
I have 3-D points data as following. Could you suggest a way to locate the two features circled? I can use regression and dy/dx...
circa 10 anni fa | 0 risposte | 0
0
risposteDomanda
Reading a huge text file using Textscan()
I have a .txt file with 3235K number of lines, and 25 space delimited columns. I use the following code to read the file: ...
circa 10 anni fa | 1 risposta | 0
1
rispostaDomanda
Random pick data by label
I have a data array (13x5). The last column is the class (1-4) of each data. How do I randomly pick n-number of data from each c...
circa 10 anni fa | 1 risposta | 0
