Restrictions; Direct Print(Dia); Photo Optimize; Red Eye Correction - Canon AD1 Service Manual

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Functions > Basic Function > Direct Print(DIA) > Restrictions

Direct Print(DIA)

DIA(Digital Image Adjustment) function that is image function
DIA executes Auto Photo Correction against the print data.
Auto Photo Correction is the function that executes image analysis against the photo image
and executes optimal image processing and has 3 functions: Red eye correction, Photo
optimize and Face brightness.

■ Photo optimize

This corrects the contrast, color balance, color saturation and gradation in photo image to the
optimal status.
There are 4 types correction effects such as level correction (contrast improvement), color
balance correction (color overlap reduction), saturation correction (saturation improvement)
and gradation correction (gradation deviation correction). It does not refer to EXIF information
that contains the information at camera shot.

■ Red eye correction

This detects the red eye from the picture image that occurs due to flash or strobe light at
shooting and corrects it into black.
This detects and corrects the red eye regardless of races (this works for blue or gray color
eyes etc.).
Also, this can detect and correct the red eye even though only a half face is printed (detection
for one-eye).
• Regarding the correction capability
This targets the red eye which size is approx. 1% against the short edge of image and may
not correct the extremely big or small red eyes. The minimum possible red eye size for
correction is 3 pixel.
This can work for blue or gray color eyes because red eye occurs inside the pupil. Eye
color is the color outside the pupil.
It is possible to adjust the level to decrease the color saturation corresponding to the setting
value of red eye correction level.
Red eye detection is the same even though the correction level is changed.
2 Functions > Basic Function > Direct Print(DIA) > Restrictions

■ Face brightness

For the photo image taken with dark face due to backlight or lack of exposure, this corrects
the entire image to lighter to make the people's face appropriate brightness.
• Correction capability
Even in case of the dark skin color because of suntan or race, the image is corrected to
lighter.

■ Restrictions

Following is the restrictions regarding the foregoing 3 functions.
• They are disabled when [B&W print] is selected.
• They are disabled when [Kyuanos] is selected in [Matching Mode].
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