INTELLIGENT SEGMENTATION OF FRUIT IMAGES USING AN INTEGRATED THRESHOLDING AND ADAPTIVE K-MEANS METHOD (TSNKM)
DOI:
https://doi.org/10.11113/jt.v78.8993Keywords:
Segmentation, thresholding, K-means, Fuzzy C-means, active contour, natural illuminationAbstract
Recent years, vision-based fruit grading system is gaining importance in fruit classification process. In developing the fruit grading system, image segmentation is required for analyzing the fruit objects automatically. Image segmentation is a process that divides a digital image into separate regions with the aim to obtain only the interest objects and remove the background. Currently, there are several segmentation techniques which have been used in object identification such as thresholding and clustering techniques. However, the conventional techniques have difficulties in segmenting fruit images which captured under natural illumination due to the existence of non-uniform illumination on the object surface. The presence of different illuminations influences the appearance of the interest objects and thus misleads the object analysis. Therefore, this research has produced an innovative segmentation algorithm for fruit images which is able to increase the segmentation accuracy. The developed algorithm is an integration of modified thresholding and adaptive K-means method. The integration of both methods is required to increase the segmentation accuracy for fruits images with different surface colour. The results showed that the innovative method is able to segment the fruits images with high accuracy value,
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