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features on the ground, for example; urban areas, housing, cgmmunlcatlon routes <br />not obscured <br />and field boundaries. <br />occlusions <br />Smearing from DEM inaccuracies or occlusions that exceed 3% of a Skirt %Sam area <br />No stated policy but subject to vall- <br />ate not acceptable, <br />out <br />Smearing caused by turbulence Is not acceptable. <br />No stated policy but subject to call- <br />sm"Ting <br />out <br />Cumulative luminosity pixel count for bins 0•S and 7.50.255 shall not be less than <br />Cumulative luminosity pixel count <br />Glppinj} <br />98%,preferably> 99% <br />for bins 0-5 and 250.255 shall not be <br />less than 98%,preferabty> 99% <br />Must be consistent across the block. The appearance of too much contrast where <br />Difference between cumulative pixel <br />shadows become too dark or too little contrast where the appearance is of a flat <br />counts containing 99Y and l%of <br />nature must be avoided. This applies to all topography, Including monotone. <br />the data shall be greater than 59% <br />Contsart <br />of the bit depth, 34% <br />Target: 150 <br />Minimum: 140 <br />Maximum: 160 <br />Mean pixel count within 37S%of the middle ON value <br />Mean pixel count within 37.5% of <br />Minimum: 108 <br />the middle ON value <br />i!<i6bUIlSs <br />Maximum: 147 <br />Minimum: 108 <br />Maximum: 147 <br />Neutral objects shall be have a ON difference of no more than 5 for any FIGS triplet. <br />Should be consistent across the supplied block with minimal banding caused by <br />vignetting or hot spots due to excessive light. The appearance of the Image must be <br />Neutral objects shall be have a ON <br />Colorbalance <br />a realistic representation of the true colour on the ground. Pre-delivery samples <br />difference of no more than 5 for any <br />may be requested. <br />RGB triplet <br />Bridge/freeway/causeway warp/smear is not acceptable. Modifications undertaken <br />to reduce pixel stretch must ensure that the resultant ortho image is a realistic <br />representation of real work! features, Pixel stretch on man-made features, bullding, <br />bridges, and other elevated features, where the geometric fidelity of the feature Is <br />wwowafiVismwr <br />compromised, may be reduced using Image manipulation software provided there <br />Bridge/freeway/causeway <br />Is no over simplification or unrealistic fabrication of real world detail (for example <br />warp/smear is not acceptable <br />buildings, roads and railways). <br />Visible joins between ortho-images and flight lines within each block should be <br />avoided but will be accepted under the following conditions: they do not hide detail <br />or adversely affect the ability to extract Information from the Image; they do not <br />stretch the entire length of the seamllne, for example dearly outlining entire <br />Images; they do not Impact geometric fidelity (no change In shape or alignment <br />Buldingseawkwshw <br />between images); there Is no positional shift between Images along visible lines; <br />Within NVAsonly <br />and o the colour difference Is slight and/or well graduated and consistent both <br />with In the block and with edgematched blocks In the Imagery layer, they are along <br />any cloud edges remaining from the Cloud Cover conformity. <br />Supplemental flightlines will be added as required to minimize building lean. <br />Buildings over 60ft tall that are not at nadir will be assessed for lean. Seamllnes <br />8utld4t.Pain <br />will be moved to use the most nadir data. The objective Is to have the centre line of <br />roads vlslble. <br />