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Results tagged with image-processing
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user 53229
Questions on the image processing capabilities implemented in Mathematica.
4
votes
1
answer
184
views
How to get to ComponentMeasurements[] from orthographic projection of a Graphics3D[] object?
Let's say I have some composite 3D graphics of various shapes. For simplicity, let's say these are just two capsules, like below:
myShapes = {CapsuleShape[{{-0.002997, 0., 0.}, {0.002997, 0., 0.}}, 2. …
- 84.1k
3
votes
1
answer
254
views
How to dilate binary image from outside-to-inside?
I have a binary image of a line, like this one:
What I'd like to do is to dilate the line, but only towards the 'inside' of the line. That is, to add white pixels towards the center of the image, usi …
4
votes
2
answers
167
views
How to get ComponentMeasurements[] from colorized image?
I'm using a software to segment images. Long story short, the output given is an array of integers (range 0-255), which I show here colorized:
I'm supposing that the software avoids representing two …
- 33.4k
5
votes
4
answers
397
views
How to separate n colors from image into n binary images?
I have some images in which I expect to have some red, green, blue, or yellow areas. Like this image:
myImage =
Now, I'd like to get 4 binary images, representing each of the 4 colors. What I'd like …
- 20.5k
0
votes
2
answers
105
views
How to show/merge multiple Image3D[] graphics?
Suppose I have 2 (or more) Image3D graphics:
redCubes = Image3D[RandomInteger[1, {3, 3, 3}],
ColorFunction -> (If[# == 1, Red, Transparent] &)]
greenCubes = Image3D[RandomInteger[1, {3, 3, 3}],
…
- 5,209
4
votes
3
answers
252
views
How to do a "random" image partition based on seeding points?
I'm new to image analysis with Mathematica, so far it looks it has great capabilities. I'm trying to do an image partition, similar to ImagePartition[], but "random". Suppose I have the image below:
m …
- 401k
2
votes
How to do a "random" image partition based on seeding points?
Okay, in case it is of any use to somebody, following the comment by @C.E. I took a look into ImageTrim[]. It was only a matter of finding out the specific format of the arguments of the function.
(*L …
- 1,643
0
votes
1
answer
90
views
Strange behavior of Show with picture + points
I have a square image of 1000 x 1000 pixels, and I want to generate a collection of points inside the image. Knowing that the image is a square, I thought of simply generating points in the domain {0, …
- 108k
3
votes
1
answer
148
views
How to generate blobs of a given circularity?
I'm trying to generate some "imaginary" geographic regions (think of it as islands, for instance), by generating random blobs/blots. Currently, I'm using Szabloc's blotc[] function. However, for my ap …
- 69.7k
1
vote
2
answers
117
views
How to change color of DistanceTransform image?
I want to overlay a set of points onto a distance transform of them. But, I don't really like the black default color of the distance transform. Is there a way to change this?
Given the points pts:
…
1
vote
How to extract specified objects from a pdf?
Given that the formatting of the text seems consistent, it might suffice to partition the text by periods (".") and remove newlines ("\n" and "\r").
text = StringSplit[StringDelete[Import["mypdf.pdf" …
- 1,643