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Screening a million compounds for the price of a few thousand?

Anne Carpenter Biologists are coming up with more and more complex physiologically-relevant assay systems and scaling them up for screens. From co-cultured cells to C. elegans to 3D organoids and tumor spheroids, these assay systems can be challenging, expensive, lower-throughput, and/or rely on...

CellProfiler & Ilastik: Superpowered Segmentation

Kyle Karhohs Joining forces CellProfiler is capable of accurate and reliable segmentation of cells by utilizing a broad collection of classical image processing methods. Peruse the documentation on the IdentifyPrimaryObjects module, for example, to get a sense of these, e.g., thresholding...

Help! Why does CellProfiler say it can’t find any valid image sets?

Beth Cimini Defining the input to CellProfiler can be the hardest part of getting your pipeline set up and your analysis underway. Incoming images are configured in the first 4 modules of CellProfiler – Images, Metadata, NamesAndTypes, and Groups – which offer lots of flexibility. But it’s sometimes...

Looking for the Unexpected: Unbiased Image Analysis

Anne Carpenter So you already know how to put together an image analysis pipeline to measure particular phenotypes of interest? Great! Have you ever considered looking for the unexpected? Say you are comparing two treatment conditions, such as a negative control vs. a hormone treatment. You may have...

CellProfiler 4.1 Release

Beth Cimini Hi all, We hope you’re enjoying our new CellProfiler 4.1 release! If you haven’t had a chance to see it yet, please do grab a copy from https://cellprofiler.org/releases. There are a few new features or changes of note we’re particularly excited to share with you all: For the first time...

CellProfiler 4.2 Release

David R. Stirling Hi all, We’ve now released CellProfiler 4.2! You can download it from https://cellprofiler.org/releases. We have a few new features and improvements in this release. There have been numerous smaller bug fixes, but the key changes are as follows: We’ve fixed an issue which was...

Thinking like an image analyst, Part III: Enhancing fibers for detection

Pearl V. Ryder In the previous blog post in this series, I demonstrated how I masked out debris that was brighter than the fibers of interest. In this post, I’ll walk through how I enhanced the fibers in order to increase their brightness and decreased the background intensity of the images. If you...