Download internet pictures become low quality I have downloaded a picture from internet:



But, when  I view it from gallery, it looks like very low quality. Its smoothness is completely gone:



I need to set a smooth picture as a wallpaper for my phone, and the downloaded version is too low quality to use. Can someone help me? 

Edit: Looks like even my screenshot makes the web picture look blurry, anyway here is the link to the original picture:

http://picview.info/download/20150531/brown-shadow-background-black-1080x1920.jpg
I think it's to do with the resolution of the wall paper you downloaded - it's 1080 * 1920 image , which is not high enough to be scaled properly on your device without blemishes as noticed by you

Typical Hi resolution wallpapers which give a better result are in the region of 1240 * 2208. You could Google those for the solid colours you are looking for or use an app like Solid Colours ( I haven't tried that app but use a different app that gives jet black wallpaper )