1. An apparatus capable of recognizing a hand shape in a portable terminal, the apparatus comprising: a trainer configured to generate uniform training image data to collectively generate a plurality of images of a desired region obtained from an original image in an identical posture and an identical size, and perform a training process to prevent a feature point from being generated in a portion where detection is unnecessary in the generated training image data; and a detector configured to detect a rotated object from input data after the training process.