OkCustomMap

OkCustomMap is a software to produce Garmin Custom Maps. Supports many map formats (OkMap, Ecw, GeoTiff, World files, OziExplorer, GpsTuner), JPEG quality (0-100), KML transparency (0-255), draw order (0-100), image scaling in percentage and filters (Box, Bilinear, BSpline, BiCubic, CatmullRom, Lanczos). You can customize the size of the tiles or the horizzontally or vertically tiles number.