Making Every Pixel Count

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Deblooming• Must be done before image is resampledor any pixels are “smoothed.”• In Maxim DL, I prefer Wodaski’s plug-in.• In CCDStack Process Data RejectReject Blooms• Saturation level controls the identificationof blooms. The smaller the value the more“inclusive” the algorithm is.
Hot/Cold Pixels• Maxim DL: Use Command Sequencer to applyfilter to a set of files (open memory or on disk).– Hot Pixel threshold between 10-20%• CCDStack: Data Reject Reject Hot/ColdPixels.– I prefer to work on full range of data. Set upper limitaccordingly.– Strength of 2-3 is usually quite good.– Assuming dithered data, that requires only shifts toregister and combined with nearest neighborresampling…. You can technically skip this step. Butobviously you must think ahead during dataacquisition.
Page 1 and 2: Making Every Pixel CountBy Adam Blo
Page 3 and 4: Fundamental Steps1. Calibrate Data
Page 5 and 6: CalibrationThe Steps1. Subtract Bia
Page 7: Maxim DLCalibrationProgram scans fi
Page 11 and 12: Maxim DLRegistration• Automatic r
Page 13 and 14: Nearest Neighbor Aside• No new pi
Page 15 and 16: Normalization• Necessary preparat
Page 17 and 18: Standard Deviation
Page 19 and 20: Statistical Analysis (Excel)Making
Page 21: Threshold Rejection/Combine(CCDStac
Page 25 and 26: Color Range Selections• Used to i
Page 40 and 41: Stellar De-emphasis(Minimum)1. Colo
Page 61 and 62:
DDP Damage Control
Page 63 and 64:
Multiplicative ContrastEnhancement
Page 66 and 67:
Quick Saturation• Convert the ima
Page 68:
Object Masks• The luminance of th
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Making Every Pixel Count

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