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We all know how important are images and photos in our lives. It can be a collection of one’s nostalgia, a presentation, etc., and the list is not exhaustible. When it comes to storing images, particularly digital images, the concern are there regarding their security, privacy, and storage space. Taking care of all these factors helps you avoid issues like color casting in images. In the present blog, we are going to discuss lossless compression, lossy compression, and no compression of images. This would help you all to decide in which format you should shoot or store your pictures and why.
Before we move further, we define a few terms below to make things lucid.
Whenever you take images using any digital camera, DSLR, or Camcorder, you are mostly asked the format in which you wish to take images, whether RAW or JPEG (RAW Compressed), where the former is uncompressed and the latter is a compressed form of images. You need to choose one as per your need or the purpose of the image. Also stated earlier, when compression has no effect on the quality of the image, then it is lossless compression. When there is an effect on the quality of the image, then it is a lossy compression.
As stated above, the basic need for compression of images is to create more space in the storage device and ensure easy and fast transmission of images. When the picture is seen on a small screen like an LCD of camera, computer monitor, small TV screen, phone, or tablet, then you cannot notice lossy compression. But when you need a large print of an image or display of pictures on large screens, need images of high resolution to see the details of an image, or wish to keep details of the image intact and original, then one should take photos in RAW form or lossless compressed RAW form. Professional photographers prefer to capture an image in RAW form, but such images are large-sized. Thus, it is recommended that in order to conserve space, one should save RAW images in lossless compressed form.
A digital sensor can capture more information as compared to human eyes. If this fine information is removed, then while compressing an image, it does not come to notice of any person. This is a lossy compression. Such images are suitable for emailing and uploading on the web.
Further to add, compression of images is also done to enable your cameras to write the images faster to memory cards. It also takes lesser time to transfer images to the computer. Moreover, when you take images in the compressed RAW form, the compressed images occupy less space, and you get more continuous shooting time.
Ways to avoid deterioration or loss of quality of images due to compression can be listed below:
In this blog, we have discussed compressed and uncompressed image forms so that you should understand and know which format you should use to save your images. Besides this, there may be scenarios where saved images get corrupted, deleted, become inaccessible, or do not open. In such cases, the easiest way to retrieve and restore them is to use an efficient and powerful Photo repair tool like Kernel Photo Repair, which works irrespective of the reasons of corruption, damage, or loss, and it has the ability to recover images from any storage device and can store them in any format. It can recover lost or deleted Sony camera images too.