Risposto
Converting a color image into a set of data
I've posted a number of demos on estimating data from a pseducolor image, including thermal images. You need a clean pseudocolo...

circa 2 mesi fa | 0

| accettato

Risposto
uiimage introduces artifacts? How to fix?
Interesting that this had already been reported before I reported it as a bug. The reason for these artifacts is simple. When...

2 mesi fa | 2

Risposto
Making an X ray image out of x, y, z coordinates ERROR
The data probably isn't being picked up by textscan() because of the way the delimiter is being specified. If there aren't othe...

2 mesi fa | 0

Risposto
How to transfer color and texture of an image to another image?
There are no MATLAB tools that will do good blind transfer of color themes, let alone textures. There are examples of technical...

2 mesi fa | 0

| accettato

Risposto
How do I eliminate (minimize) display quantization with imshow?
I don't really know why the renderer would change it that significantly, but maybe it depends on settings or drivers I don't hav...

2 mesi fa | 1

Risposto
please explain the function of each command used in this code. These commands are part of allan variance code.
zeros() numel() sum() sqrt() https://www.mathworks.com/help/matlab/matlab_prog/matlab-operators-and-special-characters.html ...

2 mesi fa | 1

Risposto
Fill confidence band hexadecimal color
Didn't recall that working either. X = [0 0 1 1]; Y = [0 1 1 0]; fill(X,Y,'','facecolor','#7E2F8E');

2 mesi fa | 0

Risposto
How to calculate standard deviation from ROI of image after thresholding?
You have the pixel values, so you can just use those. % a grayscale image inpict = imread('cameraman.tif'); % an antialiase...

2 mesi fa | 0

Risposto
How can i change the font size of XTick and YTick (x axis and y axis) in histogram of a image?
Other than manual editing, none of these answers work as simply as suggested. The reason is that imhist() creates two axes obje...

2 mesi fa | 0

Risposto
A problem in using imhist to display histogram of indexed image
This is a bug that's been part of imhist() for a very long time. When fed an integer-class indexed image, the colorbar will be ...

2 mesi fa | 0

Risposto
Make only the highest values of grayscale image transparent
I'm going to assume that the goal is to combine two images of the same page geometry and then save the result. If the end goal ...

3 mesi fa | 0

Risposto
Matrix of fading colors
Loops aren't needed. % don't embed parameters into the code outsize = [256 256]; % [y x] % i'm assuming we live prior to R2...

3 mesi fa | 0

Risposto
Reading image into 16 bit signed int
There's no elegant and succinct way of doing this with base tools alone, considering that you'll potentially need to support mul...

3 mesi fa | 0

Risposto
how to convert a monochrome image of depth 24 bits into a monochrome image of depth 8 bits ?
Here's a more comprehensive example which should handle both unsigned and signed integers. Attached are two demo images. One i...

3 mesi fa | 0

Risposto
How can I save a 32 bit image (uint32) as a tiff?
Here's a simple demo that should demonstrate writing odd numeric classes to a TIFF. This supports 8,16, and 32 bit signed and u...

3 mesi fa | 0

Risposto
Normalizing by means of zero-mean
I'm going to stick this here and close the duplicate threads. What's missing from this form of the question is that the input i...

3 mesi fa | 0

Risposto
How to find a polygon in an image
This is largely assembled from existing examples. I'm sure we can find a way to break it, but this image is pretty forgiving. ...

3 mesi fa | 0

Risposto
Imfuse 'blend' issues
Like most cases, I don't see the point of using imfuse() here. If you're treating the images as if they're binarized, make sure...

3 mesi fa | 0

Risposto
Bluewhitered function in tiledlayout environment
Unlike other map generators, bluewhitered() depends on the caxis of the current axes. You need to generate the map after you se...

3 mesi fa | 1

| accettato

Risposto
How can i change ppm image resolution when I using Imread?
Good gravy. I finally figured out what you're doing. You're writing your PPM files using 'maxvalue' set to 1023. This is wh...

3 mesi fa | 2

| accettato

Risposto
error
We know the following: You get a warning that a specific user-created (or downloaded) filename is preventing the use of a built...

3 mesi fa | 0

Risposto
how to get the pixel value of histogram?
You have the bin values. You know which bins you want. Why are you zeroing the histogram counts instead of changing the image?...

3 mesi fa | 0

Risposto
Make an image darker with overlay of another image
If your images are in standard scale (i.e. correctly scaled for their class), then I don't see why you'd be using imagesc() to d...

3 mesi fa | 0

Risposto
Coor image enhancement in spatial domain
"Enhance" is shorthand for "read my mind and do whatever it is that I want but haven't spent enough thought to formally conceive...

3 mesi fa | 0

Risposto
Drag histogram to adjust contrast
You're asking for a graphical image adjustment tool while simultaneously asserting that you can't use the extant ones because yo...

3 mesi fa | 0

Risposto
Poor imshow image quality
The image is being drawn into a TiledLayout with the default wide padding and tile spacing. A ton of space is being wasted. ...

3 mesi fa | 0

Domanda

How to report/flag a user or a ThingSpeak channel?
When I find spammers, I often tend to check their profile to see what else needs cleaned up. Occasionally there are accounts li...

3 mesi fa | 1 risposta | 0

1

risposta

Risposto
finding 4 neighbor of pixel in grayscale image.
Disregarding edges, the 4-neighbors of a pixel IM(y,x) are obviously %IM(y,x+[-1 1]) % horizontally-adjacent pair %IM(y+[-1 1]...

3 mesi fa | 0

| accettato

Risposto
Input is a valid integer
Assuming the input x is a char vector from input() which represents a numeric scalar: isvalidnumber('56') % positive scalar int...

3 mesi fa | 0

Risposto
Unequal, custom, non-evenly spaced colorbar intervals
It can be done, but it's annoying to do. A lot of people take shortcuts and represent nonuniform intervals with uniform colorba...

3 mesi fa | 0