BigImage: Add merger of overlapping noaa records from different stations

[hornig]

The NOAA recordings of different stations should be mergable.
It will provide two advantages:

1. it will increase the image size and mage it bigger, because overlapping parts of each station adds up.
2. the pixels with several sources will be "stronger". This means that of one image line is noisy in the recording on station 1, it can be with lower noise at station 2 and decreasing the signal to noise level of the combined solution.

synchronization of the images can be achieved with 3 methods:

1. by taking the minute marker (only possible with longer recordings).
2. by using line matching. taking one line and find this pattern by correlation in the other recoring
3. by the dgsn gps synch method. this is only possible with DGSN stations.

[PranavRabade]

Hi hornig I would like to work on this issue can you guide me where i can get started.