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GammaCorrection/ White balance
Considering that we're talking about the Photoshop curves tool, imadjust() does simple power-law gamma adjustment without the ne...

2 years ago | 0

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How to white balance the each RGB components of an image?
I'm bored on a sunday night, so I'm just going to throw this here. I don't really ever have need for auto white balancing, but ...

2 years ago | 1

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reverse of bwmorph(BW, 'skel' )
Here's another idea using distance transform and watershed(). This uses the same blob and skeleton as in my prior comment. % a...

2 years ago | 0

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help Adaptive median filter !!
This answer discusses and provides a link to an implementation of a similar adaptive median filter: https://www.mathworks.com/m...

2 years ago | 0

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removing up and down spikes from a surface
It would help to have an example of the data to know what the ranges look like. At first glance, I might try to throw an adap...

2 years ago | 0

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How can I find a path for each letter containing a list of x and y values?
If you're trying to vectorize text, and aren't terribly concerned with the font, you could just start with text that's already i...

2 years ago | 0

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How to Apply Jet Colormap to Montage?
There are two places where color tables are used: indexed color images (direct colormapping) pseudocolor representations of a...

2 years ago | 1

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Answered
Rotate one image and plot on top of another
Since the images are the same size, this can be done with a simple blend, without the need for any compositing. % reading in ...

2 years ago | 0

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Answered
Save 2D double arrays as 3-channel png files (RGB)
The file double2rgb() does not do the same quantization as pcolor()/imagesc() will with CDataScaling = 'scaled'. Consider this ...

2 years ago | 1

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how can we represent a pixel to a character in image ?
To convert to unit-scale: im2double() normalizes the image with respect to black and white mat2gray() normalizes the image wit...

2 years ago | 1

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Extract part from an RGB image based on the obtained pixel locations.
"Extract" tends to be a word that gets used in ways that make it difficult to know what anyone means when they use it. Here are...

2 years ago | 1

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Answered
Is it possible to code png's similar to a grid?
The question is a bit unclear, but maybe this is something in the right direction: % some images [fg,~,fga] = imread('sadberry...

2 years ago | 2

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Extract RGB from an Image and fit to color legend values in MATLAB
There are a number of examples of doing this. Here's another. % another crusty JPG of a questionable plot inpict = imread('ht...

2 years ago | 0

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Answered
How to remove annotations in an image
Using manual selection is one way. I'm going to try to do this programmatically. % this is an indexed-color image [inpict CT...

2 years ago | 0

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aligni to the center character string in array cells
So it's either a string array or a cellchar. In either case it has some unknown amount of whitespace on at least one side. It'...

2 years ago | 0

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why I use imread fuction this photo not RGB array?
It's an indexed-color image. If you want it to be RGB, you can convert it. % this is an indexed image and its corresponding co...

2 years ago | 0

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Answered
How can I track these fine particles?
Here's one idea. I'm sure there are better ways. It really depends which specks are necessary. With the limited depth of fiel...

2 years ago | 1

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Removing white space when using axis equal
I'm going to guess that this is relevant: https://www.mathworks.com/help/matlab/creating_plots/save-figure-with-minimal-white-s...

2 years ago | 0

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How to smoothen or interpolate an array of data if I cut out some parts of it?
I don't know why nobody has mentioned fillmissing() or other inpainting tools. load data.mat % pick a region to inspect i...

2 years ago | 0

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Convolution of two curves
If you read the video description, there's a link to the animation script. https://github.com/umarkhan353/SP_MATLAB_IntellCity ...

2 years ago | 0

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How to resize imtool window?
Set the figure properties as you choose. inpict = imread('peppers.png'); hi = imtool(inpict,'initialmagnification',200); se...

2 years ago | 0

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Finding pixel numbers for certain colors
That depends entirely on how you want to make the distinction between "red" or "blue" and colors which are in-between, because t...

2 years ago | 0

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Displaying alpha values written into an image file
MATLAB has no image viewer which can conveniently handle isolated display of transparent images. If you try to display the imag...

2 years ago | 0

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Matlab jokes or puns
(cough) yeahah what('is love')

2 years ago | 0

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How to convert stance image from index to grayscale
No, don't use BT709 luma. No, don't discard columns from the colormap. If you're using IPT ind2gray(), just use ind2rgb(). ...

2 years ago | 1

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How to delete inserted shapes via user interface
Why is this a ridiculous idea? The output of insertShape() is a raster image. There aren't shape objects to select. There's n...

2 years ago | 0

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Issue with generating a sine wave via linspace and colon
You're trying to draw a sine wave with a frequency 30x higher than your sampling rate. The output is nothing but aliased nonsen...

2 years ago | 2

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Can someone help me with changing colors on insertShape function??
Both CVT insertShape() and insertText() differ from most other IPT/base MATLAB tools, in that the color tuples/tables they accep...

2 years ago | 0

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How to know the pixel size(width, length, height)
If this data came with an associated header file, then things like scaling info should be there. Considering the stack from o...

2 years ago | 0

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Answered
Problem with 'InsertShape'?
Well, unless I'm missing something regarding intended usage, that's a bug. % a blank image with the same geometry as OP's image...

2 years ago | 0