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Otsu’s Thresholding with OpenCV

Anastasia Murzova
Sakshi Seth
August 5, 2020 Leave a Comment
Feature Detection OpenCV 4 Segmentation Tutorial

August 5, 2020 By Leave a Comment

In this post, we will examine Otsu's method for automatic image thresholding. What is Image Thresholding? Image thresholding is used to binarize the image based on pixel intensities. The ...

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Tags: Binarization foreground separation Global threshold OpenCV OpenCV4 Otsu Segmentation threshold thresholding within-classes variance
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Filed Under: Feature Detection, OpenCV 4, Segmentation, Tutorial

CNN Receptive Field Computation Using Backprop with TensorFlow

Anastasia Murzova
July 23, 2020 Leave a Comment
Computer Vision Stories Deep Learning Feature Detection Image Classification Keras Object Detection Tensorflow Tools Tutorial

July 23, 2020 By Leave a Comment

In our recent post about receptive field computation, we examined the concept of receptive fields using PyTorch. We learned receptive field is the proper tool to understand what the network 'sees' ...

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Tags: bounding box classification CNN deep learning fully convolutional Fully Convolutional Network (FCN) imageNet Keras max activation Object Detection object detector ONNX pre-training preprocess unit pytorch2keras receptive field Resnet resnet18 resnet50 response map Tensorflow threshold
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Filed Under: Computer Vision Stories, Deep Learning, Feature Detection, Image Classification, Keras, Object Detection, Tensorflow, Tools, Tutorial

OpenCV Threshold ( Python , C++ )

Satya Mallick
February 24, 2015 24 Comments
how-to

February 24, 2015 By 24 Comments

OpenCV Threshold Tutorial

What is image thresholding? Carefully observe the animation below (Figure 1). How many numbers do you see? Most of you will see the numbers: 32 (oh yeah, look carefully), 64, 100,  128, 180, ...

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Tags: threshold
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Filed Under: how-to

About

I am an entrepreneur with a love for Computer Vision and Machine Learning with a dozen years of experience (and a Ph.D.) in the field.

In 2007, right after finishing my Ph.D., I co-founded TAAZ Inc. with my advisor Dr. David Kriegman and Kevin Barnes. The scalability, and robustness of our computer vision and machine learning algorithms have been put to rigorous test by more than 100M users who have tried our products. Read More…

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