Batch rename files using a CSV in Python
Posted 19th January 2023
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Use this simple Python script to change hundreds or thousands of file names automatically, based on a CSV. This procedure will work on all operating systems.
Structuring elements in Python
Posted 1st September 2022
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Some simple methods to generate structuring elements as part of an image morphology pipeline in Python.
Add your Conda environment to your Jupyter Notebook
Posted 31st May 2022
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By default, Jupyter Notebook will only display a single kernel (called ipykernel) when installed in a new environment. Here’s a procedure for choosing another Conda environment in a Jupyter Notebook.
Bounding rectangles in Python OpenCV
Posted 20th July 2021
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There are two methods in OpenCV to derive a bounding rectangle and extract the relevant values of an object or series of objects in an image.
Peak Signal-to-Noise Ratio (PSNR) in Python
Posted 12th February 2021
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Quantitatively check the quality of a compressed image using a simple Python code for calculating the Peak Signal-to-Noise Ratio (PSNR) between two images.
Reading EXIF data in Python
Posted 2nd February 2021
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In order to review the properties of various common-format image files, I wrote a command-prompt script in Python that will display EXIF data and other properties of JPG, PNG, TIF, CR2 and NEF files.
Query a PostgreSQL database via Python
Posted 11th December 2020
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Use this simple template script created in Python to connect to your PostgreSQL database and run a query.
Iterate both i and j in Python
Posted 2nd September 2020
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Two methods for implimenting nested iterations of i and j in Python.
SQL to CSV via Python, with Headers
Posted 7th June 2019
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Nifty Python code that converts a SQL database file into a CSV file and includes column headers.
Larger matplotlib images in Jupyter Notebook
Posted 21st February 2019
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Simple code to enable matplotlib to generate larger inline images in Jupyter Notebook.