Questions tagged [image-processing]

Questions on the image processing capabilities implemented in Mathematica.

161 questions with no upvoted or accepted answers
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How to dilate or erode a 3D geometry import with STL format?

I am a freshman to Mathematica. I just wonder if it is possible to dilate or erode directly the 3D geometry in STL format. I have tried to import a STL file and then used Dilation function. However, ...
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168 views

Remove background of an image and replace it with different color

I have a picture that has a black background that is not entirely black, so I want to replace it with a totally black background. RemoveBackground works well in removing the background but I just want ...
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64 views

How to merge several small components with nearest larger components?

I am doing a segmentation of some objects in a 3D image img3d: image-stack can be downloaded from https://www.dropbox.com/sh/nsszin69z5sfzs2/...
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928 views

Draw image as a continuous-line drawing

There is code to drawing image as a continuous-line tako=Import["http://imgur.com/vJkdS4x.png"] ...
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50 views

Why is the SelectComponents behaving differently?

based on the code provided by Dr. belisarius at here, I wanted to test it on a single slice of a 3d image. If I write the code in the following way I get the desired output. ...
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103 views

Image processing issue in Mathematica 11 on Mac

c = CurrentImage[] returns an image. Now I try: FindFaces[c] it gives: FindFaces::imginv: Expecting an image or graphics ...
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155 views

Detection of blurry object

I have a series of very similar images (8bit gray-scale, png) where I track an object. The problem is that it is blurry and its brightness is comparable to the background. Below is the code how I am ...
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95 views

Transforming part of an image to a square

I'm trying to detect pieces on a photographed checkerboard. Determining the corners of each square works fine, but for each of those squares I'd like to generate an image from the original image and ...
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84 views

Creating rectangles from “ImageCorners” output

I want to create multiple rectangle areas from this image where the rectangle would be defined by the points on the edges of the outer most squares - dont mind the inner ones. In the end there ...
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133 views

Is there a way to represent the image obtained by ImageDifference between 0 and 1?

I would like to use ImageDifference to express the change in motion between 0 and 1. ...
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286 views

Getting intensity values from image to make a Gaussian fit

To get the pixel values (intensity) from an image I tried data = PixelValue[image, {1;;1024, 1;;371}, "Byte"] data = [[All, 1]] I expected to get a matrix, but I ...