All Questions
Tagged with machine-learning image-processing
58 questions
14
votes
2
answers
1k
views
How to detect loops in a vector field?
Given a vector field and I'd like to detect if there are streamlines in closed patterns. For example, if the input is a vector field like this:
...
- 31.8k
16
votes
2
answers
2k
views
Trainable WEKA segmentation of images
Is there a Mathematica equivalent of Trainable WEKA Segmentation as implemented in Fiji, the image processing software? A Google search did not return any relevant links.
I attach the original image ...
- 459
7
votes
1
answer
639
views
Using ImageIdentify
How long does it take ImageIdentify to give an answer for one image? Also, I suppose using it requires an Internet connection with Wolfram servers. Is that correct?
- 7,164
5
votes
1
answer
670
views
How can I train a binary classifier to find a logo?
So I'm trying to contruct a simple binary classifier.
Problem: Classify an image as containing the apple logo, or not.
I'd like it to be distortion, color, size and rotationally invariant. I'm sure ...
- 31.8k
1
vote
0
answers
333
views
When using Classify[] on images, is preprocessing necessary?
If the images in the training data set have different sizes and channels and color spaces, will this hinder the classifier? The examples in the documentation seem to suggest that normalization with <...
- 31.8k
25
votes
1
answer
6k
views
How can I detect if an image is of poor quality?
I need to filter out blurry or otherwise bad quality images from a set. I would like an efficient method to detect images that have any of the following three attributes:
Out of focus or motion blur
...
- 31.8k
4
votes
0
answers
439
views
How to make distance transform invariant to scale?
I am trying to use a distance transform as a descriptor to encode silhouettes in order to do a shape recognition task. It is clear that distance transform distribution is invariant under rotation and ...
- 2,046
6
votes
1
answer
723
views
Unsupervised Machine Learning Algorithm for Autonomous Image Processing and Tracking
I am trying to prototype a Mathematica application that will enable Autonomous Intruder & Anomalous Event Detection, Tracking and Alarm to web users those who want to autonomously and ...
- 61