Join Eric Wexler for an in-depth discussion in this video Creating a selection using Color Range, part of Photoshop CS3 Extended for BioMedical Research.
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In this movie, we are going to use the Color Range command to collect…information about the colonies. If you are following along with me, open up…Colony Count in the Chapter 10 Exercise folder.…Now we see groupings of colonies and we are going to use the Color Range tool…to create the selection just of the colonies. So we go up to Select, pull down…Color Range, and this opens up a different way to create a selection. We can…change the Preview to None so we are able to actually see the picture that we…are going to want to identify a certain type of color for Photoshop to trace…around. In this case, we are going to be looking at the white colonies. And we…have Fuzziness, which is basically how large a range around what area we…identify will the selection be created. So we will drop this down to about…50, which is a good place to start. And now we bring our cursor over, click in…the middle of the colony, and we can see in our Preview box that we have…selected the multiple colonies. And we can also change the Selection Preview to…
NOTE: Actual biological research images are used for this title's examples. Some of these images, including those of internal organs and dissected animals, may be considered graphic or offensive to some viewers. Viewer discretion is strongly advised.
- Understanding imaging in biomedical research
- Getting started in Photoshop
- Organizing digital assets
- Working with image stacks
- Evaluating image color and histograms
- Modifying images for research
- Compensating for acquisition problems and limitations
- Adding reference information to images
- Sharing work
- Optimizing and creating a DICOM image or animation