These involve the first two dimensions of the image, its width and height.ĭensity measurements Measurements involving the third dimension, the pixel values. Spatial measurements Measurements of distance, area, and volume. The power of image processing is its ability to make measurements in these dimensions: You also learned about the three dimensions of an image width, height, and bit depth. In the Intro to ImageJ section, you learned that a digital image is a string of numbers, displayed in a rectangular array, according to a lookup table. Top of page Getting to Know Measuring in ImageJ Select What You Want to Measure (Set Measurements)
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