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Tag Archive for computer-vision

What is watershed in the context of image processing?

I am new to image processing using Python. Now I am learning OpenCV and the mahotas module in Python. Many functions in these modules are related to watershed of an image. I don’t know what watershed means for an image. Here is an example from the OpenCV documentation: http://docs.opencv.org/search.html?q=watershed&check_keywords=yes&area=default

Compute a pixel’s angular offset from the image center

I have a pinhole camera with known position, rotation, and horizontal/vertical FOV. A sphere with known position is placed so that it is visible in the camera’s FOV. My goal is to find the angular offset of the sphere’s centroid from the center of the image.

YoloV3-Tiny training time

I’m new to AI and was training a Cat detector as a project. I’m currently working on Google Colab and have done initial training and have the best weight that I’m using for further training. The problem I’m running into is that my new data set is about 9500 images and the time estimate it’s giving till it’s finished is roughly 400 hours. Is there anything I can change to get the hours to drop? I only have 1 class, and this is the current cfg im using:
batch is 64
subdivisions are 16
max_batches are 150000
steps are 120000 to 135000

Measuring “novelty” of data

I have a heuristic in mind that should allow me to “score” data based on “novelty” that I would like to work in real-ish time.