runmat-runtime 0.4.8

Core runtime for RunMat with builtins, BLAS/LAPACK integration, and execution APIs
Documentation 
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{
  "title": "rgb2gray",
  "category": "image/color",
  "keywords": [
    "rgb2gray",
    "rgb",
    "grayscale",
    "luminance",
    "image"
  ],
  "summary": "Convert an RGB image to grayscale using luminance weights.",
  "references": [
    "https://www.mathworks.com/help/matlab/ref/rgb2gray.html"
  ],
  "gpu_support": {
    "elementwise": false,
    "reduction": false,
    "precisions": [],
    "broadcasting": "none",
    "notes": "GPU inputs gather to host so integer image dtype semantics are preserved."
  },
  "fusion": {
    "elementwise": false,
    "reduction": false,
    "max_inputs": 1,
    "constants": "inline"
  },
  "requires_feature": null,
  "tested": {
    "unit": "builtins::image::color::rgb2gray::tests"
  },
  "description": "`rgb2gray(RGB)` converts an MxNx3 truecolor image to an MxN grayscale image with the standard luminance weights.",
  "behaviors": [
    "Accepts MxNx3 truecolor images.",
    "Uses weights 0.2989, 0.5870, and 0.1140 for red, green, and blue.",
    "Preserves uint8, uint16, single, and double image class metadata on host tensors."
  ],
  "examples": [
    {
      "description": "Convert RGB To Gray",
      "input": "I = rgb2gray(RGB);",
      "output": "% I is MxN"
    }
  ],
  "links": [
    {
      "label": "im2double",
      "url": "./im2double"
    }
  ],
  "source": {
    "label": "crates/runmat-runtime/src/builtins/image/color/rgb2gray.rs",
    "url": "https://github.com/runmat-org/runmat/blob/main/crates/runmat-runtime/src/builtins/image/color/rgb2gray.rs"
  }
}