pixels_imagejgui.md 843 Bytes
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## Explore pixel values and indices
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* Open image: xy_8bit__nuclei_noisy_different_intensity.tif
* Explore different ways to inspect pixel values and indices
* Check where the lowest pixel indices are in the displayed image:
        * Most commonly: Upper left corner, which is different to conventional coordinate systems.

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## Explore pixel sizes 
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* Open image: xyz_8bit_calibrated_anisotropic__mri_head.tif
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* Check the pixel sizes (calibration) of this image
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* Explore how image calibration affects spatial measurements, e.g.,
  * Measure the distance between two pixels in the image
  * Measure the size of an image region
* Appreciate that image calibration might be neccessary, e.g.
  * 3D distance measurements
* Appreciate that image calibration can be confusing, e.g.
  * not consistently used in image filter parameter specification