Jurgen

VU University

Actif depuis 2012

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Reading a select number of characters from a string
If you don't want to convert to char type: extractBetween and it's brethren work on the newer string datatype.

presque 5 ans il y a | 4

Question

Check if property is dependent
I'm trying to write a method that checks if the non-dependent properties of a class are initialized properly. Using ` fieldnames...

presque 7 ans il y a | 1 réponse | 0

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Concise way to compare/find multiple values
If I have a matrix of integers called A and want to find the mask corresponding to values 1 and 7, I currently do this: mask ...

presque 7 ans il y a | 1 réponse | 1

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Extend scope of variables to other local functions
I have a function that uses a few helper functions. I'd like these helper functions to have access to variables without: * pa...

environ 8 ans il y a | 1 réponse | 0

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Select visual studio compiler with mex
I have visual studio 2015 (community) installed. It can compile C++ fine. Do I still need the Windows SDK to use mex, or is ther...

plus de 8 ans il y a | 1 réponse | 0

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Convert binary ROI to polygon
I have a binary image with a concave polygon drawn in a paint application. Using find() I get a set of points, but they aren't o...

plus de 8 ans il y a | 3 réponses | 0

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How to divide a matrix into smaller matrices
A cell type can hold several matrices, so splitting your matrix should output a cell. Mat2cell has syntax that let's you carve u...

plus de 9 ans il y a | 0

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problem in image resizing
Have you tried .bmp? I think that does not use compression. It should be slightly greater than 100KB due to the header.

plus de 11 ans il y a | 0

| A accepté

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How can I normalize data between 0 and 1 ? I want to use logsig...
NDATA = mat2gray(DATA);

plus de 11 ans il y a | 17

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how to choose the value?
I suggest you concatenate the numerical input l1 with the string 'bus'. Then display the content with display(). E.g. X = [...

plus de 11 ans il y a | 0

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How do I change the image displayed in the axes of a gui?
Agree with Image Analyst, you can use the same command as with the first button to display. Alternatively changing the CData pro...

plus de 11 ans il y a | 1

A soumis

Imsplit
Split image or matrix into subparts using simple syntax.

plus de 11 ans il y a | 6 téléchargements |

A soumis

Colormix
Combine basic colors with string syntax to create any RGB color.

plus de 11 ans il y a | 1 téléchargement |

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convert matrix to rgb
The FEX has mat2im and real2rgb. Can recommend both! <http://www.mathworks.nl/matlabcentral/fileexchange/23342-real2rgb-color...

plus de 11 ans il y a | 1

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Endometrial cancer detection using Image processing
Since you don't know where the cells are, cropping the images could mean deleting the areas with the cancer cells. So it is your...

plus de 11 ans il y a | 0

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Valcolor
Apply color CLR to colormap entry pertaining to value VAL. Either scaled or indexed figure.

plus de 11 ans il y a | 1 téléchargement |

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Create .mat similar to MRI for image processing
3D display on a 2D screen may not be the best option. Most MRI analysis programs just show slices from several directions. I ...

plus de 11 ans il y a | 0

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how can i calculate brightness,contrast,hue and saturation of a image?
Assuming its an rgb image, you can do rgb2hsv to find the hue and saturation of pixels. Value is similar to brightness, but you ...

plus de 11 ans il y a | 0

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Resizing two images to the same pixel dimensions without aspect ratio distortion
Your question is: Can I change the aspect ratio of A to fit that of B without changing the aspect ratio of A? It makes no sense!...

presque 12 ans il y a | 0

A soumis

Mat2gray variant with dimension option
Normalizes sections of an N-D matrix divided along DIM to the 0.0-1.0 range.

presque 12 ans il y a | 2 téléchargements |

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How to use an absolute scale with colormaps
Yes, just adjust the CLim property of the axes to the desired range. e.g. caxis([0 45]) will map the colors to 0-45 range.

presque 12 ans il y a | 0

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To tilt image backwards
Instead of doing it manually, use a for loop, compare with 'correct' reference image (e.g. sum of squared differences) and selec...

presque 12 ans il y a | 0

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how to detect noise in an image?
You're not the first: <http://www.mathworks.com/matlabcentral/answers/52882-image-noise-estimation-image-processing> <http...

presque 12 ans il y a | 1

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Multiple plot handles to the same figure
Also, maybe figsplit and figmerge may help. <http://www.mathworks.com/matlabcentral/fileexchange/31737-splitmerge-matlab-figu...

presque 12 ans il y a | 0

A soumis

Zerocolor
Set colormap entry for zero values to specified RGB color

presque 12 ans il y a | 2 téléchargements |

Réponse apportée
Can someone help me with my image processing?
I think your problem is similar to a recent post by Steve Eddins: http://blogs.mathworks.com/steve/2012/12/18/counting-object...

presque 12 ans il y a | 0

Réponse apportée
Image Transformation using Parallel Processing / GPU
Maybe this helps: http://www.mathworks.nl/discovery/matlab-gpu.html

presque 12 ans il y a | 0

Question

List all toolbox functions
Ive looked around but only found depfun() and which(). But is there a command that lists all functions in a toolbox (excluding d...

presque 12 ans il y a | 2 réponses | 1

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DO I need Image processing tool box to upload image into GUI
I think this should work? I = imread('file_on_path.jpg') imagesc(I);

presque 12 ans il y a | 0

A résolu

Swap the first and last columns
Flip the outermost columns of matrix A, so that the first column becomes the last and the last column becomes the first. All oth...

presque 12 ans il y a

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Jurgen

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