i have some problem with 16 features for image ...

1) The horizontal position, counting pixels from the left edge of the image to the center of the smallest rectangular

box that can be drawn with all “on” pixels inside the box.

2) The vertical position, counting from the bottom, of the box.

3) The width, in pixels, of the box.

4) The height, in pixels of the box.

5) The total number of “on” pixels.

6) The mean horizontal position of all “on” pixels relative to the center of the box divided by the width of the box.

7) The mean vertical position of all “on” pixels relative to the center of the box and divided by the height of the box.

8) The mean squared value of the horizontal pixel distances as measured in #6.

9) The mean squared value of the vertical pixel distances as measured in #7.

10) The mean product of the horizontal and vertical distances for each “on” pixel as measured in #6 and #7.

11) The mean value of the squared horizontal distance times the vertical distance for each “on” pixel.

12) The mean value of the squared vertical distance times the horizontal distance for each “on” pixel.

13) The mean number of edges (an “on” pixel immediately to the right of either an “off” pixel or the image boundary)

encountered when making systematic scans from left to right at all vertical positions within the box.

14) The sum of the vertical positions of edges encountered as measured in 13 above.

15) The mean number of edges (an “on” pixel immediately above or either an “off” pixel or the image boundary)

encountered when making systematic scans of the image from bottom to top over all horizontal positions within the

box.

16) The sum of horizontal positions of edges encountered as measured in #15.

kindly i wanted to know is there someone who know about these 16 features ???thanks

yasaman.jokar 0 Newbie Poster

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