Background blur processing, Gaussian blur algorithm that can make pictures blurred

LCBlur-master
.............\.travis.yml
.............\LCBlur.podspec
.............\LCBlur
.............\......\LCBlur.h
.............\......\UIView+LCBlur.h
.............\......\UIView+LCBlur.m
.............\LCBlurDemo.xcodeproj
.............\....................\project.pbxproj
.............\....................\project.xcworkspace
.............\....................\...................\contents.xcworkspacedata
.............\....................\...................\xcuserdata
.............\....................\...................\..........\yuanjincang.xcuserdatad
.............\....................\...................\..........\.......................\UserInterfaceState.xcuserstate
.............\....................\xcuserdata
.............\....................\..........\yuanjincang.xcuserdatad
.............\....................\..........\.......................\xcschemes
.............\....................\..........\.......................\.........\LCBlurDemo.xcscheme
.............\....................\..........\.......................\.........\xcschememanagement.plist
.............\LCBlurDemo
.............\..........\AppDelegate.h
.............\..........\AppDelegate.m
.............\..........\Assets.xcassets
.............\..........\...............\AppIcon.appiconset
.............\..........\...............\..................\Contents.json
.............\..........\...............\Contents.json
.............\..........\...............\ratchet.imageset
.............\..........\...............\................\Contents.json
.............\..........\...............\................\ratchet@2x.png
.............\..........\...............\................\ratchet@3x.png
.............\..........\Base.lproj
.............\..........\..........\LaunchScreen.storyboard
.............\..........\..........\Main.storyboard
.............\..........\Info.plist
.............\..........\ViewController.h
.............\..........\ViewController.m
.............\..........\main.m
.............\LCBlurDemo01.png
.............\LCBlurDemoTests
.............\...............\Info.plist
.............\...............\LCBlurDemoTests.m
.............\LCBlurDemoUITests
.............\.................\Info.plist
.............\.................\LCBlurDemoUITests.m
.............\LICENSE
.............\README-zh_CN.md
.............\README.md

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