SPOT 4.1 Basic and Advanced Software Manual for SPOT Insight ...

Ch. 5 – Preparing to Take a PictureTo use the Correct Color feature in Advanced Mode, simply make sure the checkbox is checked in theimage setup window (under post processing) and then in the live image controls. In Basic Mode, simplycheck the checkbox in the image settings window. In TWAIN or Mac 3 rd party mode, check the checkboxfor Correct Color.In order to get the best results using this feature, you should make sure you set up your imaging systemincluding your computer monitor appropriately. See Appendix F for more information on system set-up.Be aware that the color correction transformations that occur when you use Correct Color Technology willbe applied to the raw image data, leaving a modified image file. If you will require the raw data for furtheranalysis of your image, you should uncheck the Correct Color checkbox.Chip Defect CorrectionWhen you capture an image, the SPOT program automatically compensates for CCD chip defects, so thatthey do not appear on your images. The Chip Defect Correction option allows you to turn off this automaticcorrection. This can be useful in cases when you are performing quantitative measurements of pixelbrightness values and need to see precisely where chip defects are.The Chip Defect Correction box is, as a default, checked when you define a new image setup. To turn offthe program's automatic chip correction, deselect the Chip Defect Correction box.Noise FilterThe Noise Filter corrects for the effects of electrical or thermal noise. When capturing dim images withlengthy exposure times, the noise filter acts as a “virtual cooler” for the Insight camera, eliminating “hotpixels.”The Noise Filter checks each pixel on the CCD chip as described below:1. The program compares the value of each red pixel with the values of the eight neighboring red pixels.2. If none of the eight neighboring red pixels has a value within ±50 % (i.e., the threshold value that theSPOT program uses) of the value for the red pixel being checked, the value for the red pixel beingchecked is replaced with the average value of the eight neighboring red pixels.3. The program repeats this procedure for the values of the green and blue pixels being checked.To use the Noise Filter, follow these steps:To filter noise, follow these steps:1. Check the Noise Filter box.2. Enter a value between 10% and 100%. The Threshold value is set to a default of 50%. Refer to theprocedure described above for an explanation of the Threshold value.3. When you capture an image, the program automatically adjusts the image using the Noise Filter valuethat you entered.Note: You can also use the Filter Noise Edit menu option to adjust captured images, asdescribed in Ch. 8 – Viewing, Editing, and Annotating Images.Gamma AdjustGamma Adjust smoothly lightens darker areas of an image without burning out bright areas or lighteningblack areas. This is especially useful for capturing/editing images with a wide range of brightness values(dynamic range) such as:• Fluorescence specimens• Macroscopic objects with glints, such as printed circuitryUser Guide to the SPOT Insight Camera 107