JAI LT-200CL User Manual

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JAI LT-200CL User Manual Manual pdf 48 page image

LT-200CL478.29 Command PGR – Run pixel gain correction and store in user areaThis command initiates the flat-field correction function, and stores the settings in theuser area.Settings: 0= Run PRNU correction and store to user areaAssociated functions: Command PGC must be set to 2Important note: The image sensors must not be saturated when executing this function. When executing this function, the exposure time and line rate should be the same aswhen the camera is operated in the application.Refer to chapter 6.3.8 PRNU (Pixel Response Non-Uniformity) correction for furtherdetails.8.30 Command PGS – Inquire the status after pixel gain correctionThis command returns the status of the pixel gain correction, with the followingparameters:0=Shading correction not completed yet1=Successful2=Error 1 – Image was too bright3=Error 2 – Image was too dark4=Error 3 - Timeout occurred8.31 Command SDC – Select shading correction modeThis function enables (or disables) the shading correction.Settings: 0 = off (Bypass)1 = Factory setting (default)2 = User areaAssociated functions: Command SDR8.32 Command SDR – Run shading correctionThis function initiates automatic shading correction, and stores the result to the userarea. This function should be used together with the flat-field correction (commandsPGC and PGR). There are two types of shading correction: Individual R, G and Bchannel correction and chromatic shading correction.Settings: 0=Run flat shading correction and store to user area1=Run color shading correction and store to user area(A) Flat shading correction (SDR=0)Shading is calculated and individually compensated for R, G and B channelsrespectively. The calculation is based on the average value of 8 consecutive pixels.The maximum deviation that can be compensated is -20% of the highest signal level(brightness) of the line.