An improvement technique of fragile watermarking to assurance the data integrity on vector maps

Vector map has properties more precise, easily stored, processed, and distributed when compared to maps in paper form. The problems that arise from the above conditions is how to develop appropriate methods to be able to ensure the authenticity of the map. The method applied is fragile watermarking using hash functions as watermark to be inserted. Any improvements made here is to present a better implementation technique and performance measurement. Invisibility, fidelity, robustness (fragility) and blind characteristics are fulfilled well by this technique. The invisibility degree on the watermarked map is shown by the scale of RSME distortion on 10-12 up to 10-13. The fidelity degree of the map will be maintain in shift range value of 10-7 meter (0.1 micrometer). For fragility testing, the results of the implementation is able to detect the authenticity of the map of manipulation in the form of shift changes, additions, and deletions map coordinates.