CSS-为黑色和彩色添加颜色使用滤镜的白色PNG图像 [英] CSS - Add Color to Black & White PNG Image Using a Filter

问题描述

在CSS中是否可以将颜色添加到黑色&使用滤镜的白色图像?我说的是像在Photoshop中那样使用滤镜，更好的例子是Microsoft PowerPoint中的滤镜.

Is it possible in CSS to add color to a black & white image using a filter? I'm talking about using filters like it's possible in Photoshop, and an even better example would be the ones in Microsoft PowerPoint.

我想做的是这样的:我有一个黑色图标的图像文件.我想为其添加一个滤镜，以便图像中的所有内容(背景是透明的)都具有我通过使用滤镜选择的颜色，这样我就可以使图标具有所需的任何颜色.就像我在标题中所说的那样，它是一个PNG图片，据我所知，我不能使用SVG过滤器.

What I'm trying to do is this: I have an image file of a black icon. I want to add a filter to it such that everything in the image (the background is transparent) will have the color I choose by using the filter, such that I'd be able to have the icon in whatever color I want. Like I said in the title, it's a PNG image, so as far as I know, I can't use SVG filters.

我该怎么做?我正在尝试使用原始图标为网站写一个主题，但我坚持这样做.

How can I do this? I'm trying to write a theme for a website using the original icons, and I'm stuck on this.

更新:我想使用原始的PNG图像.我不会用SVG或预编辑的PNG替换它们.

Update: I want to use the original PNG images. I'm not going to replace them with SVGs, or pre-edited PNGs.

非常感谢！

推荐答案

您可以使用CSS过滤器来做到这一点，尽管我完全不建议这样做:

You can do it with CSS filters, though I wouldn’t recommend that at all:

.colorizable {
    filter:
        /* for demonstration purposes; originals not entirely black */
        contrast(1000%)
        /* black to white */
        invert(100%)
        /* white to off-white */
        sepia(100%)
        /* off-white to yellow */
        saturate(10000%)
        /* do whatever you want with yellow */
        hue-rotate(90deg);
}

.example-clip {
    display: block;
    height: 20px;
    margin: 1em;
    object-fit: none;
    object-position: 0 0;
    width: 300px;
}

.original {
    filter: contrast(1000%);
}

body {
    background: #333;
}

<img class="colorizable example-clip" src="https://cdn.sstatic.net/Sites/stackoverflow/img/wmd-buttons.svg" />
<img class="original example-clip" src="https://cdn.sstatic.net/Sites/stackoverflow/img/wmd-buttons.svg" />

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