用CSS新属性实现特殊的图片显示效果

1 概述

1.1 前言

使用一个或多个图像相关的CSS属性（background-blend-mode, mix-blend-mode, or filter）可以实现许多特殊的图片显示效果。本文转载自Bennett Feely的个人网站，文中共列举了20种图片显示效果。

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详细代码及英文原文请访问Bennett Feely的主页。

2 效果列表

2.1 铅笔画效果

效果示例

SCSS代码

.pencil-effect {
    $url : url(photo.jpg);
    background-image: $url;
    background-size: cover;
    background-position: center;
    @supports (filter: invert(1)) and (background-blend-mode: difference) {
        background-image: $url, $url;
        background-blend-mode: difference;
        background-position:
            calc(50% - 1px) calc(50% - 1px),
            calc(50% + 1px) calc(50% + 1px);
        filter: brightness(2) invert(1) grayscale(1);
        box-shadow: inset 0 0 0 1px black;
    }
}

查看示例程序

2.2 水彩效果

效果示例

SCSS代码

.watercolor-effect {
    $url : url(photo.jpg);
    background-image: $url;
    background-size: cover;
    background-position: center;
    @supports (filter: blur(2px)) and (mix-blend-mode: multiply) {
        position: relative;
        overflow: hidden;
        &:before, &:after {
            display: block;
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-size: cover;
        }
        &:before {
            background-image: $url, $url;
            background-blend-mode: difference;
            background-position:
                calc(50% - 1px) calc(50% - 1px),
                calc(50% + 1px) calc(50% + 1px);
            filter: brightness(2) invert(1) grayscale(1);
            box-shadow: inset 0 0 0 1px black;
        }
        &:after {
            background-image: $url;
            background-position: center;
            mix-blend-mode: multiply;
            filter: brightness(1.3) blur(2px) contrast(2);
        }
    }
}

查看示例程序

2.3 浮雕效果

效果示例

SCSS代码

.emboss-effect {
    $url : url(photo.jpg);
    background-image: $url;
    background-size: cover;
    background-position: center;
    @supports (filter: invert(1)) and (background-blend-mode: difference, screen) {
        background-image: $url, $url, $url;
        background-blend-mode: difference, screen;
        background-position:
            calc(50% - 1px) calc(50% - 1px),
            calc(50% + 1px) calc(50% + 1px),
            center;
        filter: brightness(2) invert(1) grayscale(1);
    }
}

查看示例程序

2.4 彩铅效果

效果示例

SCSS代码

.colored-pencil-effect {
    $url : url(photo.jpg);
    background-image: $url;
    background-size: cover;
    background-position: center;
    @supports (filter: invert(1)) and (mix-blend-mode: color) {
        position: relative;
        &:before,
        &:after {
            display: block;
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-size: cover;
            box-shadow: inset 0 0 0 1px black;
        }
        &:before {
            background-image: $url, $url;
            background-blend-mode: difference;
            background-position:
                calc(50% - 1px) calc(50% - 1px),
                calc(50% + 1px) calc(50% + 1px);
            filter: brightness(2) invert(1) grayscale(1);
        }
        &:after {
            background: inherit;
            mix-blend-mode: color;
        }
    }
}

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2.5 黑板效果

效果示例

SCSS代码

.chalkboard-effect {
    $url : url(photo.jpg);
    background-image: $url;
    background-size: cover;
    background-position: center;
    @supports (filter: grayscale(1)) and (background-blend-mode: difference) {
        background-image: $url, $url;
        background-blend-mode: difference;
        background-position:
            calc(50% - 1px) calc(50% - 1px),
            calc(50% + 1px) calc(50% + 1px);
        filter: brightness(1.5) grayscale(1);
    }
}

查看示例程序

2.6 彩色黑板效果

效果示例

SCSS代码

.colored-chalkboard-effect {
    $url : url(photo.jpg);
    background-image: $url;
    background-size: cover;
    background-position: center;
    @supports (filter: brightness(2)) and (background-blend-mode: color, difference) {
        background-image: $url, $url, $url;
        background-size: cover;
        background-position:
            calc(50% - 1px) calc(50% - 1px),
            calc(50% + 1px) calc(50% + 1px),
            center;
        background-blend-mode: color, difference;
        filter: brightness(2);
    }
}

查看示例程序

2.7 喷枪效果

效果示例

SCSS代码

.airbrush-effect {
  $url : url(photo.jpg);
  background-image: $url;
    background-size: cover;
    background-position: center;
  @supports (filter: blur(5px) contrast(5)) and (mix-blend-mode: multiply) {
        position: relative;
        overflow: hidden;
        &:after {
            display: block;
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: inherit;
            filter: brightness(1.5) saturate(100) blur(5px) contrast(5);
            mix-blend-mode: multiply;
        }
    }
}

查看示例程序

2.8 绚烂效果

效果示例

SCSS代码

.hallucination-effect {
  $url : url(photo.jpg);
  $offset : 5px;
  background-image: $url;
  background-size: cover;
  background-position: center;
  @supports (mix-blend-mode: multiply) {
    position: relative;
    overflow: hidden;
    background-color: magenta;
    background-blend-mode: screen;
    &:before, &:after {
      display: block;
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background: inherit;
      mix-blend-mode: multiply;
      transform: scale(1.05);
    }
    &:before {
      background-color: yellow;
      background-blend-mode: screen;
      transform-origin: top left;
    }
    &:after {
      background-color: cyan;
      background-blend-mode: screen;
      transform-origin: bottom right;
    }
  }
}

查看示例程序

2.9 绒布效果

效果示例

SCSS代码

.flannel-effect {
    $url : url(photo.jpg);
    background-image: $url;
    background-size: cover;
    background-position: center;
    @supports (background-blend-mode: overlay) {
        background-image: $url, $url, $url;
      background-position: center;
      background-size: 100%, 100000% 100%, 100% 100000%;
      background-blend-mode: overlay;
    }
}

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2.10 水平低墨

效果示例

SCSS代码

.low-ink-x-effect {
    $url : url(photo.jpg);
    background-image: $url;
    background-size: cover;
    background-position: center;
    @supports (background-blend-mode: screen, overlay) {
        background-image:    $url, $url, $url;
        background-size: 100% 100%, 10000% 100%;
        background-blend-mode: screen, overlay;
    }
}

查看示例程序

2.11 垂直低墨效果

效果示例

SCSS代码

.low-ink-y-effect {
    $url : url(photo.jpg);
    background-image: $url;
    background-size: cover;
    background-position: center;
    @supports (background-blend-mode: screen, overlay) {
        background-image:    $url, $url, $url;
        background-size: 100% 100%, 100% 1000%;
        background-blend-mode: screen, overlay;
    }
}

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2.12 拼贴效果

效果示例

SCSS代码

.collage-effect {
    $url : url(photo.jpg);
    background-image: $url;
    background-size: cover;
    background-position: center;
    @supports (background-blend-mode: overlay) {
        background-image: $url, $url, $url, $url, $url, $url;
        background-size: 200%, 80%, 60%, 50%, 40%, 100%;
        background-position: 50%, 80%, 30%, 0;
        background-blend-mode: overlay;
        background-repeat: no-repeat;
    }
}

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2.13 马赛克效果

效果示例

SCSS代码

.mosaic-effect {
    $url : url(photo.jpg);
    background-image: $url, $url;
    background-size: cover, 5% 5%;
    background-position: center;
  background-blend-mode: overlay;
}

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2.14 图片边框效果

效果示例

SCSS代码

.photo-border-effect {
  $url : url(photo.jpg);
  background-image: $url, $url;
  background-position: center;
  background-size: 60%, 20%;
  background-repeat: no-repeat, repeat;
}

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2.15 红外效果

效果示例

SCSS代码

.infrared-effect {
  $url : url(photo.jpg);
  background-image: $url;
  background-size: cover;
  background-position: center;
  filter: hue-rotate(180deg) saturate(2);
}

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2.16 夜视效果

效果示例

SCSS代码

.night-vision-effect {
  $url : url(photo.jpg);
  $line-width: 5px;
  background-image:
    $url , radial-gradient(
      #0F0,
      #000
    ),
    repeating-linear-gradient(
      transparent 0,
      rgba(0,0,0,0.1) $line-width/2,
      transparent $line-width
    );
  background-size: cover;
  background-position: center;
  background-blend-mode: overlay;
}

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2.17 沃霍尔效果

效果示例

SCSS代码

.warhol-effect {
  $url : url(photo.jpg);
  background-image: $url;
    background-size: cover;
    background-position: center;
  @supports (background-blend-mode: color) {
        background-image:
        linear-gradient(
          #14EBFF 0,
          #14EBFF 50%,
          #FFFF70 50%,
          #FFFF70 100%
        ),
        linear-gradient(
          #FF85DA 0,
          #FF85DA 50%,
          #AAA 50%,
          #AAA 100%
        ),
        $url;
        background-size: 50% 100%, 50% 100%, 50% 50%;
      background-position: top left, top right;
      background-repeat: no-repeat, no-repeat, repeat;
      background-blend-mode: color;
    }
}

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2.18 颜色校正效果

效果示例

SCSS代码

.selective-color-effect {
  $url : url(photo.jpg);
  background-image: $url;
  background-size: cover;
  background-position: center;
  @supports (filter: brightness(3)) and (mix-blend-mode: color) {
    position: relative;
    &:before, &:after {
      display: block;
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background: inherit;
      background-color: red;
      background-blend-mode: screen;
      mix-blend-mode: color;
      filter: brightness(3);
    }
  }
}

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2.19 水平镜像效果

效果示例

SCSS代码

.mirror-x-effect {
    $url : url(photo.jpg);
    background-image: $url;
    background-size: cover;
    background-position: center;
    @supports (transform: scaleX(-1)) {
        position: relative;
        &:before, &:after {
            display: block;
            content: "";
            position: absolute;
            top: 0;
            bottom: 0;
            background: inherit;
        }
        &:before {
            left: 0;
            right: 50%;
            transform: scaleX(-1);
        }
        &:after {
            left: 50%;
            right: 0;
        }
    }
}

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2.20 垂直镜像效果

效果示例

SCSS代码

.mirror-y-effect {
    $url : url(photo.jpg);
    background-image: $url;
    background-size: cover;
    background-position: center;
    @supports (transform: scaleY(-1)) {
        position: relative;
        &:before, &:after {
            display: block;
            content: "";
            position: absolute;
            left: 0;
            right: 0;
            background: inherit;
        }
        &:before {
            top: 0;
            bottom: 50%;
            transform: scaleY(-1);
        }
        &:after {
            top: 50%;
            bottom: 0;
        }
    }
}

查看示例程序

3 结尾

3.1 结语

详细代码及英文原文请访问Bennett Feely的主页。

本文转载自Bennett Feely的个人网站，只做学习和交流使用。