WorldView 2 Imagery - Molokai

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（USDA）已从数字地球公司（DigitalGlobe, Inc.）为本正射影像（Orthoimagery）数据集购买了企业高级许可。任何未将本产品用于“商业开发或商业用途”的政府、教育机构、非营利组织以及公众/个人均可使用该授权数据。任何个人、公司或组织为获取利润或收费而将本产品用于商业用途的行为均被严格禁止。如需获取更多信息，请参阅数字地球公司（DigitalGlobe, Inc.）另行附带的许可文件。 数字正射影像将数字图像的成像特性与地图的几何特性相结合。本主动态数字正射影像的地面分辨率为50厘米，其投影与基准面按照本元数据（Metadata）文档空间参考信息部分中客户指定的参数设置。影像包含边缘重叠区域，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。数据的常规组织方式为行（lines）与列（samples）：每一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USDA。USDA下属的自然资源保护局国家土壤测绘中心（USDA-NRCS-NGMC）对该公司交付的WorldView-2（WV-2）多光谱/全色数据捆绑包进行处理，使用ERDAS 2011软件生成了8波段、16位的全色锐化镶嵌影像。从该8波段16位镶嵌影像中提取波段2、3和4，以创建自然色（RGB）镶嵌影像。随后使用ERDAS 2011将生成的镶嵌影像从16位深度重缩放至8位深度。通过断点编辑器调整图像对比度，保存断点参数并应用于查找表（Look-Up Table，LUT）拉伸输出文件。使用LizardTech GeoExpress 8软件从RGB镶嵌影像生成了第三代压缩MrSID文件。该MrSID压缩文件附带一份独立的符合联邦地理数据委员会（FGDC）标准的元数据文件。 本合成文件包含以下三个多光谱波段： 波段2：蓝（450 - 510 nm） 波段3：绿（510 - 580 nm） 波段4：黄（585 - 625 nm） 如需获取更多信息，请联系夏威夷州全域GIS项目组（夏威夷州规划办公室）；邮寄地址：夏威夷州火奴鲁鲁市邮政信箱2359，邮编96804；电话：[phone]；电子邮箱：[e-mail]；官方网站：https://planning.hawaii.gov/gis。