I have a digital camera made by Sony that has a 14 Megapixel (decent). It saves with a JPEG(JPG) format. Many people told me that JPEG files cause image quality loss when uploading it to Facebook. Is there a way to preserve the image quality best as possible with a JPEG file? The Dimensions of this image file is 3240*4320 Thanks :)
asked Oct 19 '12 at 01:35
All you can do is to upload it in High Resolution using the option for that when uploading on Facebook. Other than this there is nothing you can do, so keep the High Res copies safe
answered Oct 19 '12 at 01:46
Facebook is not known for keeping the images high quality Or even for that matter making them look decent when at a smaller format.
If you want to use a photo site, I recommend Flickr, or Picasa. From there you can post share links to your Facebook to see the "Good" looking photo.
answered Oct 19 '12 at 01:50
What does facebook resize and compress to. After that when saving your image, resize to the max size that facebook allows (use bicubic interpolation) after that, create 10 or so images with different levels of compression starting from the lowest level of compression. fine which level of compression gives you the closest file size as a upload result.
The only photo site that I have a lot of experience with is flickr. since I use a free account, all images are limited to 1024x1024. If you upload a image that is larger and the site resizes for you, you lose gradient detail and depending on the complexity of the image (you may get a slight amount of jpeg artifacting)
For me to avoid that, I resize the files to 1024x768 using bicubic, then use the lowest amount of compression (since flickr does not apply compression when you meet the resolution requirement when on a free account)
With a pro account, they don't apply any compression
PS, no camera in the sub $20,000 provides detail that matches it's resolution, there is always softness and noise that causes a loss of detail (that is why when many cameras are reviewed, they are pointed at a resolution chart to find the true resolution, (many high end point and shoot cameras with resolutions in the 4000x+ range often have true resolutions of around 1600-1700x so if you feel you have to use facebook and they keep compressing your images, then it is best to find the true resolution of they camera and at least resize them to that resolution as a starting point, This will get you closer to a 1 to 1 pixel mapping of detail without losing any quality.
answered Oct 19 '12 at 02:30