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MSI-Ptolemy API information for developers » History » Version 2

Anchi Cheng, 03/15/2022 05:14 PM

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h1. MSI-Ptolemy API information for developers
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h2. Square_Finding node:
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The square finding should operate on each gr image tile at its saved mrc dimension.
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# Shell script to call and specified in Blobs settings.
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# Output json file is a list of square blob founds by the algorithm.  For each item, it requires the following key, value pairs.
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h3. area: integer
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> number of pixels the square opening on the gr tile image.
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h3. center: [float, float]
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> The coordinate of the square opening center [col, row] with [0,0] at the start of the data block in the mrc image.
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h3. score: float
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> The score of the blob as goodness of the blob as a good square. The higher the number the better.
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h3. brightness: float
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> Mean intensity value or equivalent in the square blob.  This is saved as a part of statistics but not used for filtering.
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h3. vertices: [[float, float], [float, float], [float, float], .....]
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> convex-hull vertices used by leginon to determine if a cursor position is within the square blob. Same coordinate system as centers.
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h2. Example json:
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<pre>
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[{"vertices": [[600.4, 304.7], [502.5, 334.8], [532.7, 432.7], [630.5, 402.6]], "center": [566, 368], "area": 10488.9, "brightness": 194.2, "score": 0.3902},
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 {"vertices": [[464.1, 568.5], [370.0, 597.5], [399.2, 692.5], [493.3, 663.5]], "center": [431, 630], "area": 9785.5, "brightness": 193.7, "score": 0.2530}]
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</pre>