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이 문서에서는 PHP 중국어 웹사이트 매뉴얼 풀어 주다
(PECL imagick 2.0.0)
Imagick::previewImages — Quickly pin-point appropriate parameters for image processing
$preview
)Tiles 9 thumbnails of the specified image with an image processing operation applied at varying strengths. This is helpful to quickly pin-point an appropriate parameter for an image processing operation.
preview
Preview type. See Preview type constants
成功时返回 TRUE
。
错误时抛出 ImagickException。