| 摘要 |
In a program performing image processing of a sound detection signal measured in a sonar, a recording medium of the present invention includes: an input step of being inputted with a GRAM image of the sound detection signal; a binarization step of separating an area where a signal exists, from the GRAM image; and an image processing step of removing noise of the area where the signal exists. According to the present invention, there is an advantage of being able to decipher a dominant frequency since the noise is removed by a morphology method by binarizing the GRAM image of the sound detection signal. |
