Workshop on image processing for microscopy
Saturday 11th November 2017
Graham Matthews and Alan Wood led this afternoon workshop in the PA135 Meeting Room in the Natural History Museum in London.
Alan gave the first presentation, showing how he uses Adobe Photoshop Elements to perform basic image processing on photomicrographs.
Graham gave the second presentation, showing how he uses PaintShop Pro for more advanced image processing.
Click the arrows to page though the slides, click the symbol at bottom right for a bigger (and slower) version.
There are videos embedded in the PowerPoint presentation, and you can also watch them separately:
Smart Photo Fix
Click the arrow to start the video (1 minute 34 seconds), click the icon to the left of “vimeo” for a larger version
Clone tool
Click the arrow to start the video (1 minute 40 seconds), click the icon to the left of “vimeo” for a larger version
Salt and Pepper filter
Click the arrow to start the video (1 minute 31 seconds), click the icon to the left of “vimeo” for a larger version
Flood filling the background
Click the arrow to start the video (22 seconds), click the icon to the left of “vimeo” for a larger version
Removing vignetting with image arithmetic (difference)
Click the arrow to start the video (57 seconds), click the icon to the left of “vimeo” for a larger version
Removing vignetting with image arithmetic (addition)
Click the arrow to start the video (56 seconds), click the icon to the left of “vimeo” for a larger version
Adding a scale bar
Click the arrow to start the video (1 minute 48 seconds), click the icon to the left of “vimeo” for a larger version
Here are some examples of the results achieved during and after the workshop.
Stained section
Image 1 – original
Image 1 – colour adjusted
Image 1 – levels adjusted, residual colour cast removed
Tissue section
Image 2 – original
Image 2 – colour balance and levels adjusted
Diatom
Image 3 – original
Image 3 – brighter
Image 3 – colours adjusted, background cleaned
Image 3 – scale and text added
Ciliate
Image 4 – original
Image 4 – background de-speckled, image sharpened
Ladybird dissection
Image 5 – original
Image 5 – lightened
Image 5 – lightened more, background cleaned
Mushroom spore print
Image 6 – original
Image 6 – adjusted
Bee leg
Image 7 – original
Image 7 – cropped and adjusted