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M64283FP

Image Sensor (Artificial Retina Chip)

MITSUBISHI ELECTRIC  

Semiconductor Technical Data

MITSUBISHI

Mitsubishi Integrated Circuit <Linear IC>

M64283FP

Image Sensor (Artificial Retina Chip)

Available exposure time

Image capture mode

Positive image/Negative image

Horizontal edge/

Horizontal edge enhancement

Vertical edge/

Vertical edge enhancement

Two-dimensional edge/

Two-dimensional edge enhancement

Minimum exposure time

(µsec)

16 (C0=01,C0=00)

16 (C0=01,C0=00)

528 (C0=11,C0=00)

528 (C0=11,C0=00)

Maximum exposure time

(sec)

1 (C0=FF,C0=FF)

1 (C0=FF,C0=FF)

1 (C0=FF,C0=FF)

1 (C0=FF,C0=FF)

Note. When C1 = 00h and C0 = 00h are set, reading image pixels is done (read-only mode) without resetting

every image capture mode. In this case, the clamp circuit cannot be used.

12.8. Edge and Edge Enhancement Image Capture Mode

12.8.1. Image Capture Mode

In addition to setting P, M and X registers individually, an edge image and edge enhancement image can

be output according to N, VH and E registers. The edge enhancement image is an image that adds an

original image and an edge image multiplied by a certain coefficient. Horizontal edge, horizontal edge

enhancement, vertical edge, vertical edge enhancement, two-dimensional edge, and two-dimensional

edge enhancement modes are available.

N VH1 VH0 E3

001 1

N VH1 VH0 E3

00 10

0 MN 0

MW P ME

0 MS 0

00 0

-1 2 -1

00 0

00 0

-1 3 -1

000

(a) Horizontal edge

(b) Horizontal edge enhancement

Figure 10. Example of Edge Enhancement 1 (Horizontal edge: Original image is the same as Figure 4)

18/35

Specifications and information in this document are subject to change without notice.

Ver. 2. 2. 3

07/22/1998

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