# Daily Archives: January 19, 2020

### Histogram and Equalization

Basically, an image histogram is a plot of the relative frequency of occurrence of each of the permitted pixel values in the image against the values themselves.  If we normalize such a frequency plot, so that the total sum of all frequency...

### Introduction to Image Processing

Applications of Image Processing In this lesson we are going to give a brief overview of some applications of image processing. Image processing is a very popular tool across different fields. Image it is diagnostics machines the MRI ,PET scan...

### Simple Logistic Regression (Part 4)

Overfitting and Underfitting The cause of poor performance of in machine learning can be attributed to either overfitting or under-fitting. What we want is model that fits appropriately. Overfitting happens when a model learns the detail and...

### Simple Logistic Regression (Part 3)

Understanding Layers and Nodes In this lesson we shall talk a bit more about layers and units. Let’s examine this 4-layer neural network. This neural network takes 2 inputs. Layer 1 has 5 units, Layer 2 has 5 units, Layer 3 has 3 units and Layer...

### Simple Logistic Regression (Part 2)

Understanding Computational Graphs Before we continue with our cat problem I would to use the lesson to introduce a visualization tool known as computation graphs. Lets say we have a function j of a b c equals 3 into brackets a plus bc. Lets say...

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