PURPOSE: To discriminate the propriety of the craze of an egg by binarizing the dense and plate image obtained by photographing the state of a light passing an egg interior to obtain binary images of pixels of a streak pattern part and the crazed part, and expanding or contracting the pixels.
CONSTITUTION: An image photographing unit 22 photographs the image formed by a light passing through an egg 110 irradiated by a light source 20 to obtain a gray level image. Dynamic binarizing in which the threshold value is varied at each small area is conducted. More particularly, the value set according to the density difference of the crazed part and the normal part is added to the image smoothed from an original image is used as a threshold value image. Thus, a binary image in which the normal part of the egg 10 is assumed to be a fixed density B and the craze and the stream are assumed to be A is obtained. The different points of the shapes and distributions of the craze and the streak are emphasized by expanding. When the crazed area approaches the linear area by nicks or branched cluster together and expanded, the vicinity part is coupled and enlarged. Contrary, the streak area is thickened by expanding, and when it is contracted, the stream is eliminated, and the craze is remained at the coupled part to be discriminated.
| JP5643940 | Egg sorting device |
| WO/2017/065610 | APPARATUS FOR RECEIVING AND TRANSPORTING A STREAM OF EGGS |
| JP2002179021 | EGG PACKAGING DEVICE |
YAMASHITA HIROYUKI
SUZUKI KENJI
ROBOTSUTO MEESHIYON KK
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