User Manual - pancroma

procedure described above. Do not apply any image processing adjustments,that is, leave the ‘Adjust Image Processing Routines’ check box unchecked.When the image is displayed, select ‘Display Files’ | ‘Compute Running Average’as before. Using your cursor, interrogate first one image, then the other. That isfirst query pixels outside the gaps. This will yield an average for the Referenceimage. Reset the average computation by depressing the ‘Reset Average’button. The repeat the query, this time selecting pixels inside the gaps. This willyield an average for the Adjust image. Now subtract the Reference average fromthe Adjust average. This is the value that should be added to the Adjust imagebrightness in the next step. (Of course if the value is negative, the number issubtracted from the Adjust brightness).When you are finished computing the two averages, select ‘Gap Fill | Gap FillETM+ again, this time with the ‘Adjust Image Processing Routines’ check boxchecked. Using the ‘Gap Adjustment Level’ slider bar, adjust the brightness,adding or subtracting the average difference number computed above to everypixel in the image.You may wish to combine this technique with contrast adjustment and hazereduction as described in the tutorial below in order to get the best results, butthis technique provides a good starting point.351