Python image resize
But if we don't have the image in that size yet, following the S3 link will first generate the image in that size and then get it served to us, as well as saving that newly resized image in the cloud for future use. Next time someone requests the same image, one of two things will happen: if the image already exists in that size, the corresponding S3 URI will serve us the previously stored image directly. We then store the result in our S3 bucket. Essentially, what we’ll do in this example is let each request generate the image of the size it needs. Storing images in S3 is an easy, scalable way to avoid the high compute costs of hosting a vast library of pre-scaled images without sacrificing the versatility of a dynamic image interface. We use S3, the AWS cloud storage service, as an example, but Serverless also works well with other cloud services including GCP and Azure. In this article, we use Python within the Serverless framework to build a system for automated image resizing. Using S3 and Python to scale images with Serverless Even where the resizing of images in our use case is necessary, the compute costs are much lower when the resizing is done by a Serverless function. The Serverless applications are already designed to auto-scale to suit the user demands, so you don’t need to pre-scale any servers and can, therefore, reduce your costs even further. With Serverless, you only use the compute you need at each moment, and you only pay for the compute you use. This also is a use case that Serverless is a great fit for.
![python image resize python image resize](https://www.tutorialkart.com/img/python/python-pillow-resize-image.png)
However, what if we created an image in each size when it’s first requested, and then saved it for later? This way each device would get the right image size for it, and we would save significantly on the storage costs and the compute costs. Should we pay a huge storage bill and pre-generate all images in all possible sizes? Should we generate each image on the fly for every request? Neither option sounds like a good idea.
![python image resize python image resize](https://i.ytimg.com/vi/TbACF7oAtJY/maxresdefault.jpg)
However, new devices with unexpected screen proportions come online unpredictably, and resizing an image in advance to fit any conceivable screen size is virtually impossible. The right option from the user experience standpoint is to provide all your images in different sizes based on the device that you are visiting from. Some of your users, though, are reading on a desktop computer where they have a better connection and a better screen, and so will appreciate the higher-quality images. A large percentage of your readers are viewing your site on their phones and don’t need the high-resolution pictures.
![python image resize python image resize](http://3.bp.blogspot.com/_AvVHNjHBeRA/S8NF-foQPvI/AAAAAAAAAO8/44DA30jLvTo/s800/imageresize-python+script(eternalthinker.blogspot.com).png)
#PYTHON IMAGE RESIZE DOWNLOAD#
Large, high-resolution images may require little effort to integrate into the user interface, but they can drag down download speeds for the whole webpage - and the impact of all that additional points of resolution on the user experience is often minimal. Images are essential to creating an engaging user experience, but more isn’t always better.