the_post_thumbnail() Custom sizes not display correctly

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I’m trying to display wide image icons from the_post_thumbnail() function. I’m using ‘true’ value for cropping, but they are not cropped well… I get some strange results with different sizes (I’m trying to use 200width x 150height). If image cannot be display with good proportions (I don’t know why whem I’m cropping it? ) then I want it to have exact 150px height always! How can I achieve it? I’ve been trying with set_post_thumbnail_size() but its even worst…

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  1. If the critical dimension is height, you have a couple options:

    Hard-cropping to the exact width/height:

    <?php
add_image_size( 'wide-image-icon', 200, 150, true );
?>

    The hard-crop will create a thumbnail size using the exact dimensions. Be sure that all images have a minimum width/height as what is defined.

    Or soft-cropping (i.e. “box-resizing”) constrained to height:

    <?php
add_image_size( 'wide-image-icon', 9999, 150, false );
?>

    The soft-crop with an unconstrained dimension (i.e. 9999 width) will box-resize to the exact height, while allowing the width to be, essentially, anything. Be sure that all images have a minimum height as what is defined.

    Also: make sure that, if you have added these add_image_size() functions after already uploading/attaching some images, that you regenerate your thumbnails.