bias

SVG 元素
1. A
2. B-C
3. D
  1. <defs>
  2. <desc>
4. E
  1. <ellipse>
5. F
6. G
7. H
  1. <hkern>
8. I
  1. <image>
9. J-L
  1. <line>
  2. <linearGradient>
10. M
11. N-P
12. Q-R
  1. <radialGradient>
  2. <rect>
13. S
  1. <script>
  2. <set>
  3. <stop>
  4. <style>
  5. <svg>
  6. <switch>
  7. <symbol>
14. T
15. U
  1. <use>
16. V-Z
  1. <view>
  2. <vkern>

bias attribute shifts the range of the filter. After applying the kernelMatrix 的 <feConvolveMatrix> element to the input image to yield a number and applied the divisor attribute, the bias attribute is added to each component. This allows representation of values that would otherwise be clamped to 0 or 1.

You can use this attribute with the following SVG elements:

<feConvolveMatrix>

用法注意事项

值	<number>
默认值	`0`
Animatable	Yes

One application of bias is when it is desirable to have 0.5 gray value be the zero response of the filter.

规范

规范	状态	注释
Filter Effects Module Level 1 The definition of 'bias' in that specification.	工作草案	无变化
Scalable Vector Graphics (SVG) 1.1 (Second Edition) The definition of 'bias' in that specification.	推荐	初始定义

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最后修改： Sep 23, 2021 , 由 MDN 贡献者