Crack pattern is very rare in traditional or classic batik pattern. So, it is very challenging to explore crack pattern as batik pattern. Unfortunately, existing crack model or crack propagation model is very complex so that it is very resource consuming because crack modeling usually is used in mechanical engineering which is needed exact calculation. In the other hand, in computer based batik pattern generation, algorithm must be simple so that batik pattern can be generated fast. Exact calculation is not necessary in batik pattern generation. In this research, we propose simplified crack modeling and it is implemented in batik pattern generation. This proposed model is developed based on graph model. The proposed model adopts crack characteristics, such as: initial stress, energy reduction, and material resistance or toughness. Crack propagates randomly in certain direction. This model has been successfully implemented in generating batik pattern. Improvisations occur both in batik object pattern and background image. Based on the test, crack split probability has positive linear relation with number of crack segments and number of split activities. Ratio between initial energy and energy reduction has positive linear relation with the number of crack segments.
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