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Using Blogger / Blogspot Image URL Structure Parameters

To day, I am honor to introduce to all Blogger template developers about the best way to crop and resize your Blogger / Blogspot images


To day, I am honor to introduce to all Blogger template developers about the best way to crop and resize your Blogger / Blogspot images using image URL Structure parameters.

Original Image

After you upload image to your post, and choose to display it as original, your image URL will be like below:

https://lh5.googleusercontent.com/-IBDLtqPDdE4/VaDvj4_9T0I/AAAAAAAAK54/6P2S800iWJE/s1600/sneeit-logo.png

The text /s1600/ in the URL will tell with Blogger / Blogspot image hosting that you want the original size version of the image.

** NOTICE: However, in some special cases, Blogger will only show a small version at s1600 for very long / big images (example: infographic images). In that case, you must increase the size to equal your image height to access the real original version, example: s5000 if your image height is 5000 pixels.

Specific Max Width

If you want to load image which is NOT LARGER than 200px in width (height is auto), you will replace s1600 to w200 like below:

https://lh5.googleusercontent.com/-IBDLtqPDdE4/VaDvj4_9T0I/AAAAAAAAK54/6P2S800iWJE/w200/sneeit-logo.png

If the width you set in the URL is larger than the original width, Blogger / Blogspot image hosting will return the original size version. That’s why we call it “Max Width”.

Specific Max Height

Similar with the max width parameter, if you want to load the image which is NOT LARGER than 30px in height, you will replace s1600 to h30:
https://lh5.googleusercontent.com/-IBDLtqPDdE4/VaDvj4_9T0I/AAAAAAAAK54/6P2S800iWJE/h30/sneeit-logo.png
If you set a height value that is larger then original height, the original size version will be returned.

Specific Max Width and Max Height

If you want to load a version with specific for both max width and max height, example:NOT LARGER than 200px  in width and NOT LARGER than 30px in height, you will replace s1600 to w200-h30:
https://lh5.googleusercontent.com/-IBDLtqPDdE4/VaDvj4_9T0I/AAAAAAAAK54/6P2S800iWJE/w200-h30/sneeit-logo.png

The return version will have width no larger than 200px and height no larger than 30px and also keeping scale ratio of original version.

Center Cropping Image

If you want to load image with EXACTLY width and height, example 300px in width and 100px in height, you must replace s1600 to w300-h100-c. The -c text at the end is “crop”. The final URL will be:

https://lh5.googleusercontent.com/-IBDLtqPDdE4/VaDvj4_9T0I/AAAAAAAAK54/6P2S800iWJE/w300-h100-c/sneeit-logo.png

If you want to crop image as SQUARE, example, loading size 300px in both width and height, you can replace s1600 to s300-c:

https://lh5.googleusercontent.com/-IBDLtqPDdE4/VaDvj4_9T0I/AAAAAAAAK54/6P2S800iWJE/s300-c/sneeit-logo.png

The -c parameter will always return a cropping version from the center of image.

Center Cropping with Circular Mask

If you input -cc instead only -c, the image will be cropped with a circular mask.

https://lh5.googleusercontent.com/-IBDLtqPDdE4/VaDvj4_9T0I/AAAAAAAAK54/6P2S800iWJE/w300-cc/sneeit-logo.png

Pick Cropping Image

If your image has a main content which is not staying in center of image, for example: your image has a face on the top or right side and you don’t want to crop the image from the center because it will cut the face in half, then you can use -p instead of -c.

When you add -p to the end of size parameter, a smart algorithm of Google Photos will inspect the image and choose the most valuable area in image to return as a crop version.

Smart Picking Crop Area for Blogger / Blogspot Images

Smart Picking Crop Area for Blogger / Blogspot Images

The final URL will be like:

https://lh5.googleusercontent.com/-IBDLtqPDdE4/VaDvj4_9T0I/AAAAAAAAK54/6P2S800iWJE/s300-p/sneeit-logo.png

Specific Background Color

If your image has a transparency background (usually PNG images) and you want to fill that transparency background with a specific color, you need to add parameter -rj-c0xHEX_COLOR to the end of size. For example, you want to fill with white color, you will need to add -rj-c0xffffff to URL parameter. The final URL will be:

https://lh5.googleusercontent.com/-IBDLtqPDdE4/VaDvj4_9T0I/AAAAAAAAK54/6P2S800iWJE/s300-rj-c0xffffff/sneeit-logo.png

If you add only -rj without -c0xHEX_COLOR, the background color will turn to black as default.

Savable Version

If you want to provide a download link for image, you can add -d at the end of size:

https://lh5.googleusercontent.com/-IBDLtqPDdE4/VaDvj4_9T0I/AAAAAAAAK54/6P2S800iWJE/s1600-d/sneeit-logo.png

XML Object

If you want to provide a XML object for image, you can add -g at the end of size:

https://lh5.googleusercontent.com/-IBDLtqPDdE4/VaDvj4_9T0I/AAAAAAAAK54/6P2S800iWJE/s1600-g/sneeit-logo.png

Combine Parameters

You can combine multiple parameters in one URL, for example, if you can to crop center of image with circular mask and white background, your URL will be like below:

https://lh5.googleusercontent.com/-IBDLtqPDdE4/VaDvj4_9T0I/AAAAAAAAK54/6P2S800iWJE/s300-cc-rj-c0xffffff/sneeit-logo.png

Hope these tips will help you optimizing your thumbnails better for your templates.

Special Thanks to Contributors

  • etormann (about specific background color, crop with circular mask and combine parameters)
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