Image Processor - setting quality increases the disk file size
Hi there,
We noticed that when we set image processor quality=90, the file size is bigger than the original file size. My expectation is that the disk file size should at least reduced compare with original disk file size. As shown below the file size is reduced when quality is set to 60. Surprisingly, the file size is almost 3x when quality is set to 100.
Is this the way Image Processor Quality suppose to work? Or is there anything that we are missing in our Image Processor configs.
We are using Umbraco 8.14.1, ImageProcessor 2.7.0.100, ImageProcessor.Web 4.10.100, ImageProcessor.Web.Config 2.5.0.100
We also noticed the same behaviour on our Umbraco 7. 15.6 set up.
If it's a JPG that's already been optimised, you probably don't want to use image processor at all because it will be optimising it all over again. It doesn't know you've already optimised it to 70% quality before uploading to the CMS.
You want to try to always upload the highest quality images and let Image Processor optimise them for you.
Image Processor - setting quality increases the disk file size
Hi there,
We noticed that when we set image processor quality=90, the file size is bigger than the original file size. My expectation is that the disk file size should at least reduced compare with original disk file size. As shown below the file size is reduced when quality is set to 60. Surprisingly, the file size is almost 3x when quality is set to 100.
Is this the way Image Processor Quality suppose to work? Or is there anything that we are missing in our Image Processor configs.
We are using Umbraco 8.14.1, ImageProcessor 2.7.0.100, ImageProcessor.Web 4.10.100, ImageProcessor.Web.Config 2.5.0.100
We also noticed the same behaviour on our Umbraco 7. 15.6 set up.
Please kindly assist.
Thanks.
Description | Height | Width | Quality | Disk File Size
Original Image | 1065 | 1600 | N/A | 284KB
Original Image + Quality90 | 1065 | 1600 | 90 | 372KB
Original Image + Quality60 | 1065 | 1600 | 60 | 235KB
Original Image + Quality100 | 1065 | 1600 | 100 | 825KB
What format is the original image?
If it's a JPG that's already been optimised, you probably don't want to use image processor at all because it will be optimising it all over again. It doesn't know you've already optimised it to 70% quality before uploading to the CMS.
You want to try to always upload the highest quality images and let Image Processor optimise them for you.
It is JPG.
Thanks.
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