Question

How to apply spatially-varying blur to an image?

Hi I have an image of size 128x128, and an associated a blur map, where each element defines the size of the blur kernel. How c...

alrededor de 1 mes ago | 1 answer | 0

Question

How to only replot part of a graph?

Hi I'm currently plotting cubic bezier splines. My aim is that every time I move a control point, the bezier curve moves accod...

alrededor de 1 mes ago | 1 answer | 0

Answered

Unrecognized property 'LabelTextColor' for class 'images.roi.Point'

The problem is solved when switching to 2020b. Thank you very much for all your help!

Unrecognized property 'LabelTextColor' for class 'images.roi.Point'

The problem is solved when switching to 2020b. Thank you very much for all your help!

alrededor de 1 mes ago | 0

| accepted

Question

How to fit ascending data with piecewise linear function?

Hi, I have a vector r sorted in asending order. Now I would like to fit this r with m+1 pieces, and extract the m internal poin...

alrededor de 2 meses ago | 1 answer | 0

Question

Unrecognized property 'LabelTextColor' for class 'images.roi.Point'

Hi, on the official website of matlab: https://uk.mathworks.com/help/images/ref/drawpoint.html#mw_d573bdc7-78b6-41f4-8ee9-c545...

2 meses ago | 2 answers | 0

Question

How to only change part of the background color?

Hi, I have a figure as my ui. Now I would like to plot something in the middle of the ui: axes('Position',[.7 .7 .2 .2]) set (...

2 meses ago | 1 answer | 0

Question

Why conv2 gives opposite sign

Hi, I have a simple matrix I: I = [1,2,3,4,5; 6,7,8,9,10; 11,12,13,14,15; 16,17,18,19,20; 21,22,23,24,25] ...

3 meses ago | 2 answers | 0

Answered

How to stick one figure to the center of another figure

I figured out a quick solution. Simply change the last part as: figure(1) imshow(img) No need to copy the object.

How to stick one figure to the center of another figure

I figured out a quick solution. Simply change the last part as: figure(1) imshow(img) No need to copy the object.

3 meses ago | 0

Question

How to stick one figure to the center of another figure

I have a main figure f with size 1200 x 800 working as my UI. I created another figure f2 of size 512x512 which presents an imag...

3 meses ago | 2 answers | 0

Question

Is there a way to input direction in matlab UI

Hi, I would like to let users to click on an image and input the normal vector of the pixel. Is there a way to let the users inp...

4 meses ago | 0 answers | 0

Question

How to repeat different vectors to form another vector?

Hi I would like to construct a vector as: 1,2,3,1,2,3,1,2,3,4,5,6,4,5,6,4,5,6.....k-2,k-1,k,k-2,k-1,k i.e. repeat [1,2,3], [4,...

4 meses ago | 2 answers | 0

Question

How to plot images with different sizes in one figure?

I have 5 images and I would like to plot them like: fig1 fig2 fig3 fig4 fig5 i.e. I would like to have two rows, the fir...

5 meses ago | 1 answer | 0

Question

2d convolution returns empty result

I have an image matrix of size 512x512x3, for each pixel I would like to compute its weight as the average of the neighbouring p...

7 meses ago | 1 answer | 0

Question

How to use 2D logical mask on an image without for loop?

I have two image matrices A and B with size 512 x 512 x 3, and a logical mask of size 512 x 512. For each position with true val...

7 meses ago | 1 answer | 0

Question

How to change plot figure resolution

I have a few points originally designed for 512x512 resolution, such as [128,450] and [336, 500]. When plotting them, I initiall...

7 meses ago | 1 answer | 0

Question

How to know which pixels are covered by a plot?

Hi, I plotted a few curves on a 512 x 512 figure (each curve has 32 points). How could I know which pixels are covered with the ...

7 meses ago | 1 answer | 0

Question

How to set default background for figures to be negative

I'm currently using matlab's rasterization functionality. After I plot a curve, I saved the whole image to a matrix using img =...

7 meses ago | 0 answers | 0

Question

How to interpolate color along a curve with specific colors?

Hi, I have a curve of dimension 50x2, and a specification of the colors at certain positions. For example, at position 1 the col...

8 meses ago | 1 answer | 0

Question

Figure automatically scales by 2

Hi, I set my figure as below: figure(1) set(gcf,'units','pixels','position',[0,0,512,512]); However, the popped figur...

8 meses ago | 0 answers | 0