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[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2023-10-06 UTC."],[[["\u003cp\u003eCreates a 3x3 Kirsch compass kernel for edge detection in images.\u003c/p\u003e\n"],["\u003cp\u003eThe kernel's values can be scaled using the \u003ccode\u003emagnitude\u003c/code\u003e parameter and normalized to sum to 1 with the \u003ccode\u003enormalize\u003c/code\u003e parameter.\u003c/p\u003e\n"],["\u003cp\u003eDefault kernel weights are [[5, -3, -3], [5, 0, -3], [5, -3, -3]], representing one of the eight Kirsch compass directions.\u003c/p\u003e\n"]]],["The `ee.Kernel.kirsch()` function creates a 3x3 Kirsch's Compass edge-detection kernel. This kernel's values can be scaled using the `magnitude` parameter (defaulting to 1) and normalized to sum to 1 with the `normalize` parameter (defaulting to false). The function, when invoked, returns a kernel represented by a weight matrix: `[5, -3, -3], [5, 0, -3], [5, -3, -3]`. This is demonstrated in both JavaScript and Python examples.\n"],null,["# ee.Kernel.kirsch\n\nGenerates a 3x3 Kirsch's Compass edge-detection kernel.\n\n\u003cbr /\u003e\n\n| Usage | Returns |\n|---------------------------------------------------|---------|\n| `ee.Kernel.kirsch(`*magnitude* `, `*normalize*`)` | Kernel |\n\n| Argument | Type | Details |\n|-------------|-------------------------|------------------------------------------|\n| `magnitude` | Float, default: 1 | Scale each value by this amount. |\n| `normalize` | Boolean, default: false | Normalize the kernel values to sum to 1. |\n\nExamples\n--------\n\n### Code Editor (JavaScript)\n\n```javascript\nprint('A Kirsch compass kernel', ee.Kernel.kirsch());\n\n/**\n * Output weights matrix\n *\n * [5, -3, -3]\n * [5, 0, -3]\n * [5, -3, -3]\n */\n```\nPython setup\n\nSee the [Python Environment](/earth-engine/guides/python_install) page for information on the Python API and using\n`geemap` for interactive development. \n\n```python\nimport ee\nimport geemap.core as geemap\n```\n\n### Colab (Python)\n\n```python\nfrom pprint import pprint\n\nprint('A Kirsch compass kernel:')\npprint(ee.Kernel.kirsch().getInfo())\n\n# Output weights matrix\n\n# [5, -3, -3]\n# [5, 0, -3]\n# [5, -3, -3]\n```"]]