Make the edge between the dataset images more soft

[HillRod]

The idea i have is make a gaussian blur in the image on the edge of the separation between the dataset images, as intended, the general idea is made an easy algorithm to apply a gaussian blur each 16~ pixels that is the size of dataset images.
The idea born when the images that are generated have rough edges between each others like this:

The general idea to apply the gaussian blur

I made a manually edit of a image on photoshop making a gaussian blur between images, taking 2 pixels of radius of each image an apply a gaussian blur of 1 radius pixel, like i shows here, where the orange cells represents the pixels that i applied the filter

And here is the difference between the original and the filtered

Original

Filtered

The edges of the images clearly seems more smooth, and in large scale i think it seems good