由于 css3 的filter滤镜可以实现对对普通图像和SVG图像进行特效渲染,功能十分强大,所以今天特意把filter滤镜的用法进行大致的总结
语法:
element { filter: none | <filter-function > [ <filter-function> ]* } <img class="grayscale lazy" src="/static/imghwm/default1.png" data-src="image.jpg" style="max-width:90%" style="max-width:90%" alt="css filter滤镜的实例讲解_html/css_WEB-ITnose" >.grayscale { filter: graycale(1); //灰度属性 //可填写范围0~1,默认值为0,即灰度不改变}
上面介绍了第一种滤镜: grayscale(灰度)
下面介绍接下来的九种滤镜
2.blur()高斯模糊
使用:该方法将周围像素点值求和取平均即为该点像素值参数:此属性接受参数接受长度值,默认值为0
.blur { filter: blur(1px)}
效果:
3.brightness()亮度
使用: 该方法调节图片的亮度参数: 默认值为1,但所填写值可以大于1,此时图像亮度会继续增强
.brightness { filter: brightness(0.6)}
效果图:
4.contrast对比度
使用: 通过调节对比度使亮处更亮,暗处更暗参数: 默认值为1,最小值为0,无最大值
.contrast{ filter: contrast(150%)}
效果图:
5.drop-shadow设置阴影
使用: 使用效果与box-shadow类似,但浏览器可能会提供加速参数: 第一二个值是偏移量(允许负值) , 第三个参数表示模糊程度(不允许负值),第四个参数表示颜色
.drop-shadow{ filter: drop-shadow(20px, 20px, 10px, black)}
效果图:
6.hue-rotate色相
使用: 用于改变色相(即具体像素的数值)参数: 用角度表示,当数值为360deg时,图像不变
.hue-rotate{ filter: hue-rotate(90deg)}
效果图:
7.invert()图像反转
使用: 对图像进行颜色上的反转参数: 默认值是0,最大值是1
.invert{ filter: invert(100%)}
效果图:
8.opacity透明度
使用: 此样式类似于opacity属性参数: 0%~100%
.opacity { filter: opacity(50%) }
效果图:
9.saturate()饱和度
使用: 转换图像饱和度参数: 默认值是100%, 但超过100%的值是允许的
.saturate{ filter: saturate(200%)}
效果图:
![ 图片描述][9]
10.sepia褐色加深(会产生一种老照片的感觉)
使用: 将图像转换为褐色参数: 默认值为0,范围是0~1
.sepia{ filter: sepia(100%)}
效果图
11.进行图像的复合处理,可以对图像进行任意的组合以获得想要的结果
.mixture{ filter:brightness(1.2) contrast(1.2)}
效果图:
通过filter属性你可以把你喜欢的图片非常容易地修改成易用的样式
......往往会把一件完整的东西化成无数的形象,就像凹凸镜一般,从正面望去,只见一片模糊.
--莎士比亚

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