Steve on Image Processing with MATLAB

Image processing concepts, algorithms, and MATLAB


Steve on Image Processing with MATLAB has been archived and will not be updated.

Posts 1 - 10 of 16

Results for: 2022

Objects and Polygonal Boundaries

In some of my recent perusal of image processing questions on MATLAB Answers, I have come across several questions involving binary image objects and polygonal boundaries, like this.The questions... read more >>

Avoid Using JPEG for Image Analysis 8

Note added 20-Dec-2022: I wrote this post with lossy JPEG in mind. If you work with DICOM data, see Jeff Mather's note in the comments below about the use of lossless JPEG in DICOM. I have... read more >>

Finding the Channels 3

Last winter, Aktham asked on MATLAB Answers how to find the channels in this image.url = "";A =... read more >>

Using Active Contour Automation in the Medical Image Labeler

Woo hoo! The Image Processing Toolbox team has just created a new product:Medical Imaging Toolbox™Shipped with the R2022b release a couple of months ago, this product provides apps, functions,... read more >>

New Geometric Transformation Matrix Convention in R2022b

In the R2022b release, Image Processing Toolbox includes several new geometric transformation objects, such as rigidtform2d, affinetform3d, etc., that use the premultiply matrix convention instead of... read more >>

Update for Code Trace for MATLAB

About a month ago, I posted about my Code Trace for MATLAB tool, which is posted to GitHub and the File Exchange. This tool is useful for exploring and troubleshooting executing MATLAB code. I... read more >>

Double Thresholding

Back in June, my answer to a question on MATLAB Answers used a technique called double thresholding, also known as hysteresis thresholding. Although the question raised was a 1-D problem, I wanted to... read more >>

Code Trace for MATLAB 9

Today's post departs from image processing, my usual subject. Instead, I want to tell you about something that I just put up on GitHub and the MATLAB File Exchange.Earlier this year, I was debugging... read more >>

Puzzle Pieces and Polyshapes

color segmentation, opening by reconstruction, boundary tracing, polyshapesEarlier this summer, Cleve sent me this picture of a puzzle.He asked for tips on turning the individual "cheese slices" into... read more >>

How to use IMSPLIT to split a color image into component images 2

Today I want to show you a handy little function, imsplit, for splitting color images into their components.Also, for no reason other than WOW, I want to show one of the images just released by the... read more >>

Posts 1 - 10 of 16