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。

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;
	}
}

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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);
		}
	}
}

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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);
	}
}

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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;
		}
	}
}

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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;
	}
}

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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;
	}
}

查看示例程序

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;
}

查看示例程序

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;
}

查看示例程序

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;
	}
}

查看示例程序

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);
    }
  }
}

查看示例程序

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;
		}
	}
}

查看示例程序

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。