Image analysis workshop

Participants will learn the fundamentals of microscopy image analysis using ImageJ/Fiji.

Target audience:
 - beginners in image analysis
 - people with a few years of image analysis experience

Learning objectives

  • Understand image bit depth, file formats and metadata
  • Working with multi-dimensional images (channels, time series)
  • Perform common image processing tasks in Fiji more effectively:
    • adjusting brightness/contrast
    • Adding scale bar
    • ROIs
    • Intensity measurements
  • Understand when to use image processing filters (Gaussian, Edge detection etc.) to help with cell/nucleus segmentation.

Prerequisite

Participants are recommended to bring their own laptops with the latest Fiji installed.

Opening images, Image file formats, bit-depth, metadata

drag and drop - TIFF, PNG
Bio-Formats for others
Opening large images with different resolutions
Bio-Formats - crop on import

bit-depth

dynamic range - https://svi.nl/DynamicRange

converting between bit depths - scale when converting (image clipping https://svi.nl/Image-Clipping)

Working with multidimensional images (Channels, time series)

Brightness/Contrast, Histogram

Scale bar

Thresholding - binary and label images

ROIs, overlays

Intensity measurements

Image processing filters and Deep Learning

  • Gaussian
  • Edge detection (Canny)