Imagick
PHP Manual

Imagick::previewImages

(PECL imagick 2.0.0)

Imagick::previewImagesQuickly pin-point appropriate parameters for image processing

Descrição

bool Imagick::previewImages ( int $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.

Parâmetros

preview

Preview type. See Preview type constants

Valor Retornado

Retorna TRUE no sucesso.

Erros

Lança ImagickException em caso de erro.


Imagick
PHP Manual