WorldView 2 Imagery - Kauai

USDA has purchased a Enterprise Premium license for this Orthoimagery dataset from DigitalGlobe, Inc. Any government, education, not-for-profit agency and public/individuals not engaged in using the "Product for Commercial Exploitation or Commercial Purposes" can use this licensed data. Use of this product for Commercial Purposes by a person/company/organization for a profit or fee is strictly prohibited. Please refer to the separately attached license from DigitalGlobe, Inc. for additional information. Digital orthoimagery combines the image characteristics of a digital image with the geometric qualities of a map. The primary dynamic digital orthophoto is a 50 centimeter ground resolution, image cast to the customer specified projection and datum defined in the Spatial Reference Information section of this metadata document. The overedge is included to facilitate tonal matching for mosaicking and ensure full coverage if the imagery is reprojected. The normal orientation of data is by lines (rows) and samples (columns). Each line contains a series of pixels ordered from west to east with the order of the lines from north to south. DigitalGlobe WorldView-2 Satellite Orthoimagery was delivered to USDA in GeoTIFF file format. USDA-NRCS-NGMC processed the DigitalGlobe delivered WorldView-2 (WV-2) Multi-Spectral/Pan data bundle to produce an 8 Band, 16 Bit Pan-Sharpen Mosaic using ERDAS 2011. Bands 2, 3 & 4 were subset from the 8 band, 16-bit mosaic to create a natural color (RGB) mosaic.The resulting mosaic was rescaled from 16-bit to 8-bit depth using ERDAS 2011. The image contrast level was adjusted using the Breakpoint editor and breakpoints were saved and applied to the LUT stretched output file. LizardTech GeoExpress 8 was used to create a compressed Generation 3 MrSID from the RGB mosaic. The MrSID compressed file is delivered with a separate FGDC compliant metadata file. The composite file contains the following three Multi-Spectral bands: Band 2: Blue (450 - 510 nm) Band 3: Green (510 - 580 nm) Band 4: Yellow (585 - 625 nm) For additional information, please contact Hawaii Statewide GIS Program, Office of Planning, State of Hawaii; PO Box 2359, Honolulu, Hi. 96804; [phone]; email: [e-mail]; Website: https://planning.hawaii.gov/gis.美国农业部（United States Department of Agriculture, USDA）已从数字地球公司（DigitalGlobe, Inc.）获取该正射影像（Orthoimagery）数据集的企业高级授权许可。未从事该产品商业开发或商业用途的政府、教育机构、非营利性机构以及公众/个人，均可使用此授权数据。任何为获取利润或收取费用而将本产品用于商业用途的个人、公司或组织，其使用行为均被严格禁止。如需了解更多信息，请参阅随附的数字地球公司授权协议。 数字正射影像融合了数字图像的成像特性与地图的几何属性。本产品的核心动态数字正射影像地面分辨率为50厘米，可投影至本元数据文档“空间参考信息”章节中定义的、由用户指定的投影与基准面。影像设置了边缘重叠区域，以便于镶嵌作业时的色调匹配，并确保影像重投影后覆盖完整。数据的标准存储格式为按行（lines，即rows）和列（samples，即columns）组织：每行包含一系列从西向东排列的像素，而行的排列顺序则为从北向南。 数字地球公司的WorldView-2卫星正射影像以GeoTIFF文件格式交付给美国农业部。美国农业部自然资源保护局-国家土壤测绘中心（USDA-NRCS-NGMC）使用ERDAS 2011软件，对交付的WorldView-2（WV-2）多光谱/全色数据捆绑包进行处理，生成了8波段、16位全色锐化镶嵌图。从该8波段16位镶嵌图中提取波段2、3和4，以生成自然色彩（RGB）镶嵌图。随后使用ERDAS 2011软件将生成的镶嵌图从16位深度重缩放至8位深度，并通过断点编辑器调整图像对比度，保存断点参数并应用于经过查找表（Lookup Table, LUT）拉伸处理的输出文件。使用LizardTech GeoExpress 8软件将RGB镶嵌图转换为第三代压缩MrSID格式文件。该MrSID压缩文件随附一份符合联邦地理数据委员会（Federal Geographic Data Committee, FGDC）标准的独立元数据文件。 本复合文件包含以下三个多光谱波段： 波段2：蓝光波段（450 - 510 nm） 波段3：绿光波段（510 - 580 nm） 波段4：黄光波段（585 - 625 nm） 如需更多信息，请联系夏威夷全州地理信息系统（Geographic Information System, GIS）项目：夏威夷州规划办公室；邮政信箱2359，火奴鲁鲁，夏威夷州 96804；电话：[phone]；电子邮箱：[e-mail]；官方网站：https://planning.hawaii.gov/gis。