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Top Forums Shell Programming and Scripting Find image greater than x pixels? Post 302533133 by mirni on Wednesday 22nd of June 2011 07:29:55 PM
Old 06-22-2011
Also identify(1) is part of imageMagick toolkit. It returns size of the image (3rd field), so you could easily do something like

Code:
identify image.jpg | awk '{
   print gensub(/x/," ","",$3)}' |  #print space instead of 'x'
   while read w h ; do  #read in width and height 
       if [ $w = 0 ] || [ $h = 0 ] ; then 
          echo zero image 
       fi
   done

 

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IMAGECREATE(3)								 1							    IMAGECREATE(3)

imagecreate - Create a new palette based image

SYNOPSIS
resource imagecreate (int $width, int $height) DESCRIPTION
imagecreate(3) returns an image identifier representing a blank image of specified size. In general, we recommend the use of imagecreatetruecolor(3) instead of imagecreate(3) so that image processing occurs on the highest qual- ity image possible. If you want to output a palette image, then imagetruecolortopalette(3) should be called immediately before saving the image with imagepng(3) or imagegif(3). PARAMETERS
o $width - The image width. o $height - The image height. RETURN VALUES
Returns an image resource identifier on success, FALSE on errors. EXAMPLES
Example #1 Creating a new GD image stream and outputting an image. <?php header("Content-Type: image/png"); $im = @imagecreate(110, 20) or die("Cannot Initialize new GD image stream"); $background_color = imagecolorallocate($im, 0, 0, 0); $text_color = imagecolorallocate($im, 233, 14, 91); imagestring($im, 1, 5, 5, "A Simple Text String", $text_color); imagepng($im); imagedestroy($im); ?> The above example will output something similar to:[NOT DISPLAYABLE MEDIA]Output of example : Creating a new GD image stream and outputting an image. SEE ALSO
imagedestroy(3), imagecreatetruecolor(3). PHP Documentation Group IMAGECREATE(3)
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