Hi

We have 23 landsat 8 level 2 imageries which has to be mosaiced. Based on date, we have mosaiced individual bands (B1, B2, B3, B4, B5, B6) and now it's down to 5 imageries. But we are not getting a seamless mosaic as the there is one month difference between the five imageries. Is it possible to "normalize" the values of one image w.r.t another one. Of course, vegetation plays a huge role in this process. But can't we match terrain and soil ( 100% is not possible) as seamless as possible ?

I've tried "Seamless Mosaic" in ENVI and used "Histogram matching -> Enitre Scene". But still can't get the seamlessness we would like to achieve. Tried "Overlap area alone" histogram matching in ENVI and used feathering. Still no improvement. Followed exactly the steps mentioned in this tutorial except (custom seamlines) https://www.harrisgeospatial.com/docs/MosaicSeamless.html.

Imageries are in 16-bit signed format