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Remove pixel whose value is below given threshold
Hello, how can i remove pixels from an image whose values are below/above a given threshold value? As far as I know images in M...
fast 4 Jahre vor | 4 Antworten | 0
4
AntwortenFrage
image block clustering using kmeans
Hi all. I have block from an image obtained using: BlockImage = im2col(A,[m n],'distinct') How best can I cluster similar bl...
fast 4 Jahre vor | 1 Antwort | 0
1
AntwortFrage
get distnct blocks contained in a given matrix.
Hello. Lets say an image of size [M N] to blocks of size [i j] each. using the following piece of code: A = im2col(im,[i j],'di...
etwa 4 Jahre vor | 1 Antwort | 0
1
AntwortFrage
how to extract frames from video using video reader efficiently
Hello. I extract frames from a video with file extension .mp4 using the code below following this discussion: vid = VideoRe...
mehr als 4 Jahre vor | 0 Antworten | 0
0
AntwortenFrage
use gpu for image processing
hello, I have created about 1500 images on disk. I process them, store the results as mat files on disk, say image1_result1.mat,...
mehr als 4 Jahre vor | 1 Antwort | 0
1
AntwortFrage
pre-define a struct/array of structs in attempt to get rid of out of memory error.
Hello, how can i pre-define an array/struct of structs? Motivation. I was dynamically creating an array that grew with every ite...
mehr als 4 Jahre vor | 2 Antworten | 0
2
AntwortenFrage
Image format converstions for processing
hello, all. i have an rgb image of class uint8 with dimension m-by-n-by-3 that i need to convert to double with dimensions m-by-...
mehr als 4 Jahre vor | 1 Antwort | 0
1
AntwortFrage
unable to perform assignment error in im2col
Hello, I think am making a basic error somewhere but I can not figure it out yet. How best can I achieve this, or what type of ...
etwa 5 Jahre vor | 1 Antwort | 0
1
AntwortFrage
Retain rgb image after processing
Hi all. how are you? How can I retain a colored image from a processed image. I know how to extract RGB color components(chan...
etwa 6 Jahre vor | 1 Antwort | 1
1
AntwortFrage
How to plot a 2d potential function
Hi all. Today I came across a function f(X,Y) = cos(2*pi*X)(1+3Y) + ((2*pi*y)^2)/2. I thought this was a 3d function but appar...
fast 7 Jahre vor | 1 Antwort | 0
1
AntwortFrage
Solving a homogenous non linear system of equations in MATLAB
Hi all, I have the following homogeneous system. I am wondering how I can solve this in MATLAB, that is if it even has a solutio...
mehr als 8 Jahre vor | 1 Antwort | 0
1
AntwortGelöst
Eight Queens Solution Checker
Write a function to verify whether an arrangement of queens on a chessboard is a valid solution to the classic <http://en.wikipe...
mehr als 10 Jahre vor
Gelöst
Help the Patriots get to the Super Bowl
Given a football by the Patriots, return it to them with 2 psi less air in it. (The original psi is passed as a number to the...
mehr als 10 Jahre vor
Gelöst
Find the sum of all the numbers of the input vector
Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...
mehr als 10 Jahre vor
Gelöst
Make the vector [1 2 3 4 5 6 7 8 9 10]
In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...
mehr als 10 Jahre vor
Gelöst
Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...
mehr als 10 Jahre vor
Viewing answers numerically from pdetool box
Thanks very much, am definitely trying it out tomorrow and letting you know if anything weird, or cool happens. thanks for the r...
mehr als 11 Jahre vor | 0
Frage
Viewing answers numerically from pdetool box
hi all, how can i view the answers to a given pde that i solved using the pde tool? i want to see the solution matrix but the p...
mehr als 11 Jahre vor | 2 Antworten | 1
