examples/ycbcr.html

<!DOCTYPE html>
<html>
  <head>
    <meta name="viewport" content="width=device-width, initial-scale=1" />
    <link rel="stylesheet" href="https://unpkg.com/leaflet@1.0.3/dist/leaflet.css" />
    <style>
      #map {
        bottom: 0;
        left: 0;
        position: absolute;
        right: 0;
        top: 0;
      }
    </style>
  </head>
  <body>
    <div id="map"></div>
    <script src="https://unpkg.com/browse/whatwg-fetch@3.2.0/dist/fetch.umd.js"></script>
    <script src="https://unpkg.com/leaflet@1.0.3/dist/leaflet.js"></script>
    <script src="https://unpkg.com/georaster"></script>
    <script src="https://unpkg.com/georaster-layer-for-leaflet"></script>
    <script>
      // initalize leaflet map
      var map = L.map("map").setView([-33.9872346, 115.0242196], 14);

      // add OpenStreetMap basemap
      L.tileLayer("http://{s}.tile.osm.org/{z}/{x}/{y}.png", {
        attribution: '&copy; <a href="http://osm.org/copyright">OpenStreetMap</a> contributors'
      }).addTo(map);

      var url_to_geotiff_file = "https://maxar-ard-samples.s3.amazonaws.com/v3/australia_vineyards/50/213133231011/2019-10-07/10500100191CD200-visual.tif";
      parseGeoraster(url_to_geotiff_file).then(function (georaster) {
        console.log("georaster:", georaster);
        const layer = new GeoRasterLayer({
          attribution: "GeoTIFF from Maxar",
          debugLevel: 0,
          georaster,
          pixelValuesToColorFn: values => {
            const r = Math.round(values[0] + 1.40200 * (values[2] - 0x80));
            const g = Math.round(values[0] - 0.34414 * (values[1] - 0x80) - 0.71414 * (values[2] - 0x80));
            const b = Math.round(values[0] + 1.77200 * (values[1] - 0x80));
            return `rgb(${r},${g},${b})`;
          }
        });
        layer.addTo(map);
      });
    </script>
  </body>
</html>