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Crop-Thumbnails
[resolved] Poor image quality (8 posts)

  1. lc
    Member
    Posted 1 year ago #

    Now it uses imagemagic -- the color profile is respected. But the quality still really bad. Is too compresses, as you can see here.

    Can you had a custom field on the plugin setting to insert the compression value we wanna? It would be really great.

    http://wordpress.org/extend/plugins/crop-thumbnails/

  2. Volkmar Kantor
    Member
    Plugin Author

    Posted 1 year ago #

    Is this before or after you had done your imagic settings correct?

  3. lc
    Member
    Posted 1 year ago #

    This was after correcting the "ImageMagic" extension on my server configuration. Otherwise it wont have the color profile sRGB (GD fail on that).

    The first one was rendered with ImageMagick Engine (quality value:"96") when it was upload to my media library.

    The secound pictures was cropped with your plugin: is too compressed. Might be an acceptable compression level for a small thumbnail, but not for one with 1050px, as you may understand.

    Do you think you can make your plugin work with imagic with a custom compression level? Otherwise, even if it's a great plugin will be useless to me. Please let me know.

  4. Volkmar Kantor
    Member
    Plugin Author

    Posted 1 year ago #

    As i say before (in http://wordpress.org/support/topic/not-working-with-imagemagick-engine-plugin-1) i only use the standard wordpress-function for transforming images. The standard wordpress-function might make use of imagick (and as you asume it do) BUT that not means it uses the settings of your plugin (that depends on what your plugin do with the settings).

    Try to add the follwing code into the functions.php to change the default quality of the wordpress image resizing:

    add_filter( 'jpeg_quality', 'my_custom_image_quality' );
    add_filter( 'wp_editor_set_quality', 'my_custom_image_quality' );
    function my_custom_image_quality( $quality ) {
    	return 96;
    }

    You may also test if it works by instead adding the following:

    add_filter( 'jpeg_quality', 'my_custom_image_quality' );
    add_filter( 'wp_editor_set_quality', 'my_custom_image_quality' );
    function my_custom_image_quality( $quality ) {
    	return 15;
    }
  5. lc
    Member
    Posted 1 year ago #

    the function are working (i tested both), but the qualaty still crap. maybe Imagemagick does other stuff regarding the crop quality. there is no other explanation.

    thanks you anyway,

  6. lc
    Member
    Posted 1 year ago #

    this may help you…

  7. Volkmar Kantor
    Member
    Plugin Author

    Posted 1 year ago #

    did it work for you?

  8. lc
    Member
    Posted 1 year ago #

    no… :/ this is sad. we have a decent way to render thumbnails on WordPress with ImageMagick Engine, but any one of the re-crop plugins works integrated with that.… we are on the era of ipads, high resolution smartphones, retina displays, and it seems that for a lot of people image quality and control is not a priority.. :/

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