Jurgen

VU University

Aktiv seit 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.

etwa 5 Jahre vor | 4

Frage

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...

etwa 7 Jahre vor | 1 Antwort | 0

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Frage

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 ...

etwa 7 Jahre vor | 1 Antwort | 1

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Frage

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...

mehr als 8 Jahre vor | 1 Antwort | 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...

mehr als 8 Jahre vor | 1 Antwort | 0

1

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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...

fast 9 Jahre vor | 3 Antworten | 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...

fast 10 Jahre vor | 0

Beantwortet
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.

fast 12 Jahre vor | 0

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

fast 12 Jahre vor | 17

Beantwortet
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 = [...

fast 12 Jahre vor | 0

Beantwortet
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...

fast 12 Jahre vor | 1

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

fast 12 Jahre vor | 1

Beantwortet
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...

fast 12 Jahre vor | 0

| akzeptiert

Beantwortet
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 ...

fast 12 Jahre vor | 0

Beantwortet
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 ...

fast 12 Jahre vor | 0

Beantwortet
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!...

fast 12 Jahre vor | 0

Beantwortet
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.

etwa 12 Jahre vor | 0

| akzeptiert

Beantwortet
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...

etwa 12 Jahre vor | 0

Beantwortet
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...

etwa 12 Jahre vor | 1

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

etwa 12 Jahre vor | 0

Beantwortet
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...

etwa 12 Jahre vor | 0

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

etwa 12 Jahre vor | 0

Frage

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...

etwa 12 Jahre vor | 2 Antworten | 1

2

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Beantwortet
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);

etwa 12 Jahre vor | 0

Beantwortet
how to set the image into axis using GUI?
It seems you name your image axes1. I'm not sure what axes11 is,nor what hadles.loadimage contains. have you tried image(ax...

etwa 12 Jahre vor | 0

| akzeptiert

Beantwortet
remove unused callbacks from GUI m files
Should not be a problem. Be careful that that message will appear on all your callbacks (local functions), even the ones you do ...

etwa 12 Jahre vor | 0

Beantwortet
give title below a figure
subplot(1,3,1); imshow(rand(300)); mt(1) = title('TEST1'); subplot(1,3,2); imshow(rand(300)); mt(2) = title('TEST2'); su...

etwa 12 Jahre vor | 2

| akzeptiert

Beantwortet
Display gray color only from grayscale image
imshow(I,[6 249]) if it's a 2D image slice you want to visualize.

etwa 12 Jahre vor | 0

Beantwortet
How to assign Pixel values to the entire images?
Not 100% sure what format your images are, but try this: If A is your 32x32 image, then A = mat2gray(A) will scale...

etwa 12 Jahre vor | 1

Beantwortet
Fusion of CT and MRI images, MI method
Alright, for a rotation and xtranslation example: stepsize1 = pi/180; %e.g. 1 degree stepsize2 = 1; %e.g. 1 pixel ...

etwa 12 Jahre vor | 0

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