Normalization over multiple images
Posted: 2013-10-11T05:50:29-07:00
Hello,
We have aerial images that we want to aggregate to do an orthophoto (we use Photoscan to do it). However, we want to improve the contrast before doing so, using Imagemagick. For this we use the command
where I script over all the images we have. While the result looks great for individual pictures, the contrast is not great for the whole set.
Indeed, we fly over snow, water and vegetation, so two consecutive sometimes go darker because there is a patch of snow (so it is saturated in white). This makes it harder for Photoscan to register correctly those images, and the result looks weird (an area of the orthophoto is darker for no reasons).
Is it possible to normalize each individual image, but taking into account that it is part of a whole folder of images?
We have aerial images that we want to aggregate to do an orthophoto (we use Photoscan to do it). However, we want to improve the contrast before doing so, using Imagemagick. For this we use the command
Code: Select all
convert in.jpg -normalize out.jpgIndeed, we fly over snow, water and vegetation, so two consecutive sometimes go darker because there is a patch of snow (so it is saturated in white). This makes it harder for Photoscan to register correctly those images, and the result looks weird (an area of the orthophoto is darker for no reasons).
Is it possible to normalize each individual image, but taking into account that it is part of a whole folder of images?