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Color determination in tomato epicarp using Computer Vision System during ripening. The evolution of color in tomatoes samples, during ripening under refrigeration or at room temperature, was studied by Computer Vision System (CVS). CVS consisted in a lighted stage, a CCD digital camera and a computer (Laptop), all calibrated. The digital processing of images was performed with the Adobe ® Photoshop ® CS3 Extended software, with which averaged images on L*, a* and b* coordinates were obtained. The proceeding tested, using CVS, allowed to study the variations of color during the ripening of tomatoes from images, by means of rectangular coordinates (L*, a*, b*). The ratio a*/b* and polar coordinates (c*, ho), showing statistically significant differences between samples determined (p<0,05). RESUMEN Se estudio la evolucion del color de muestras de tomates durante la maduracion a temperatura ambiente y otras en refrigeracion, mediante Sistema de Vision Computarizada (SVC). El SVC lo constituye un escenario iluminado, una camara digital CCD y un computador (Laptop) ambos calibrados. El procesamiento digital de las imagenes se llevo a cabo con el software Adobe ® Photoshop ® CS3 Extended, con los cuales generaron imagenes promediadas en coordenadas L*, a* y b*. La relacion a*/b* y las coordenadas polares c* y ho, que presentaron diferencias estadisticas significativas entre las muestras determinadas (p<0,05).

agronomia costarricense

Determinación del color en epicarpio de tomates (&lt;i&gt;Lycopersicum esculentum mill.&lt;/i&gt;) con sistema de visión computarizada durante la maduración