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IMAGE CLASSIFICATION TEST SETS
Registered 8-bit tiff series
  1. 2546_small_cropped_inv_work_masked_d.TIF
  2. 2546_small_cropped_inv_work_masked_e.TIF
  3. 2546_small_cropped_inv_work_masked_g.TIF
  4. 2546_small_cropped_inv_work_masked_q.TIF
  5. 2546_small_cropped_inv_work_masked_r.TIF
  6. 2546_small_cropped_inv_work_masked_y.TIF
Registered 8-bit tiff binary (0-255) cell object mask
2546_small_masked_lo7_idl_thememask.tif
Registered 8-bit indexed Isodata classification result
2546_small_masked_lo7_idl_themeindexed.tif
Registered 8-bit Jewels Test Set
Registered 8-bit grey 2366 GC Test Set: All images 1350 x 964
Theme maps
  • Marc_2002_2366map.tif: Refined theme map with kerf removed and classes 5 & 8 separated by deconvolution
  • Marc_2002_gc_indexed_map.tif: Original raw theme map produced by PCI Geomatica using Isoclus with max classes=20, target classes=16, min classes=12, sample=20%, threshold=1%
Classification "Noise" viewed in parallel plots with CellKit

A parallel-plot algorithm reveals two "variance" sources our "refined" map for cell classes: intrinsic biological variance and outliers likely due to map misalignment. The plot is a polyline for each 7D point, connecting its partners on 7 parallel axes, for each class. Class 01 - noise = a sparse band of horizontal lines outside the main "M" shaped plot. SD=15 for class 01, channel 0 (chan_b).


Class 2 - noise =a heavy band of horizontal lines ( a lot of bad pixels included under the mask) outside the main tilted "M" shaped plot. But SD is still only 8 for channel 0 (chan_b) because the density of "good" pixels is really high.


Class 3 - very few bad pixels, but the intrinsic dispersion is a little higher. (channel 0 SD =13)

Obviously, the next thing to do is write an explore tool to highlight coordinates of the "bad" pixels in the polyline on the original image.

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