SSTV Encoder 2
Copyright 2017 Olga Miller <olga.rgb@gmail.com>

-------------- Description:

This app sends images via Slow Scan Television (SSTV).

Currently supported modes are:
    Martin Modes:  Martin 1, Martin 2
    PD Modes:      PD 50, PD 90, PD 120, PD 160, PD 180, PD 240, PD 290
    Scottie Modes: Scottie 1, Scottie 2, Scottie DX
    Robot Modes:   Robot 36 Color, Robot 72 Color
    Wraase Modes:  Wraase SC2 180

-------------- Usage:

Tap "Take Picture" or "Pick Picture" menu button or
use the Share option of any app like Gallery to load an image.

Single tap to add text.
Single tap on text to edit.
Long press to move text.

-------------- Remarks:

After clicking on a mode the image will be scaled to that mode's native size.
To keep the aspect ratio, black borders will be added if necessary.
Original image can be resend using another mode without reloading.

The mode specifications are taken from the Dayton Paper of JL Barber:
http://www.barberdsp.com/files/Dayton%20Paper.pdf

Source code for decoding SSTV images can be found here:
https://github.com/xdsopl/robot36/tree/android

On Google Play you can find the working app:
SSTV Encoder
https://play.google.com/store/apps/details?id=om.sstvencoder

For decoding try:
Robot36 - SSTV Image Decoder
https://play.google.com/store/apps/details?id=xdsopl.robot36