Sharpen

Sharpen[image]
给出一个锐化的 image.

Sharpen[image,r]
在像素半径 r 上给出一个锐化 image.

更多信息更多信息

背景
背景

  • Sharpen is a function typically used to increase the visual sharpness of an image, i.e. to remove blurring and increase the focus of blurry regions. It therefore enhances local details (including edges) of an image.
  • Sharpen implements unsharp masking, which combines a high-frequency version of the image with the original in order to add details. Sharpen is a linear operation, meaning its application to a linear combination of images is equivalent to a linear combination of the images obtained by applying it individually.
  • ImageDeconvolve provides finer control over the sharpening by allowing specification of the shape of the blur, known as the point spread function. The converse operation to Sharpen is Blur.

范例范例打开所有单元关闭所有单元

基本范例  (2)基本范例  (2)

锐化照片:

In[2]:=
Click for copyable input
Out[2]=

锐化一个天文学图像,并指定一个半径:

In[1]:=
Click for copyable input
Out[1]=
2008年引入
(7.0)
| 2012年更新
(9.0)