An image coordinate system defines the spatial reference in terms of a primary image. A primary image displayed in its own image coordinate system exhibits no distortions; other images and features can be projected to overlap with the primary image using its image coordinate system. Many imagery-centric workflows require displaying images in image coordinate systems instead of map coordinates (geographic or projected coordinate systems); for example, oblique images are distorted significantly when displayed in map coordinates but can be displayed nicely in a top-up view without distortions.
Only image services support image coordinate systems. To get an image's image coordinate system, use Raster ICS; to project geometries between a geographic or projected coordinate system and an image coordinate system, use Project. Image coordinate systems can be used in image service operations when spatial reference or geometry parameters are needed.
{
"icsid": <icsid> //an ics id is the objectid of the image in a mosaic dataset.
}
{
"icsid": 9,
}
{
"ics": <ics> //the full ics json, which include transformations and map spatial reference information and specific to each image.
}
{
"ics": {
"name": "AMD_MAMD_CAT\\Raster.OBJECTID = 9",
"alias":"",
"abbreviation":"",
"remarks":"",
"geodataXform": {
"xf_0": {
"polynomialOrder":1,
"spatialReference": {"wkid":null},
"coeffX":[9623.012693429835,-0.9999999999964793,-2.6535897933527304E-6],
"coeffY":[9566.987232235868,2.6535897933527304E-6,-0.9999999999964793],
"inverseCoeffX":[9623.012693429835,-0.9999999999964793,-2.6535897933527304E-6],
"inverseCoeffY":[9566.987232235868,2.6535897933527304E-6,-0.9999999999964793],
"name":"",
"type":"PolynomialXform"
},
"xf_1": {
"spatialReference":{"wkid":null},
"coefficients":[1,0,0,0,1,-9567],
"cellsizeRatio":0,
"type":"GeometricXform"
},
"xf_2": {
"spatialReference":{"wkid":54004,"latestWkid":54004},
"constantZ":355.956,
"ZFactor":1,
"ZOffset":0,
"correctGeoid":false,
"requireDEM":false,
"interiorOrientation": {
"polynomialOrder":1,
"spatialReference":{"wkid":null},
"coeffX":[-122009.1743773452,25.00342950222755,-0.0022927308709069037],
"coeffY":[120345.98809819827,0.004618452740478162,24.9975640326764],
"inverseCoeffX":[4879.256039082114,0.0399945128715,3.6682236000000004E-6],
"inverseCoeffY":[-4815.210096242967,-7.3892307E-6,0.0400038972498],
"name":"",
"type":"PolynomialXform"
},
"konrady":true,
"konradyParameters":[-1.2603314589834097E-5,1.6224555868275652E-15,-3.6421117033555566E-26,0,0],
"konradyType":"esriRasterKonradyESRI",
"curvatureAndRefraction":true,
"earthRadius":6378137,
"averageZ":355.956,
"principalPoint":{"x":-7,"y":-9},
"focalLength":153643,
"polarity":-1,
"sensorPosition":{"x":4490522.42482,"y":5479087.21653,"z":1124.11318},
"exteriorOrientation":[-0.02457152019,-0.999287714912,0.028640936125,0.999696909733,-0.024517669223,0.002229925319,-0.001526127978,0.028687047991,0.999587276935],
"clockwise":true,
"type":"FrameXform"
},
"requireDEM":false,
"type":"CompositeXform"
},
"extent":{"xmin":4489902.49613457,"ymin":5478442.107347395,"xmax":4491127.765586247,"ymax":5479675.116981766},
"nativeExtent":{"xmin":-0.5,"ymin":-0.5,"xmax":9623.5,"ymax":9567.5},
"dx":1,
"dy":1,
"type":"ImageCoordinateSystem"
}
}