问题描述
我使用将不同格式的文件(JPEG,PNG,TIFF,PDF)转换为JPEG格式基于Python的ImageMagick绑定。生成的文件质量很差。如果原始文件中有文本,则在结果文件中几乎不可读。
I convert files of different formats (JPEG, PNG, TIFF, PDF) to JPEG using Wand, a ctypes-based ImageMagick binding for Python. The resulting files are very low-quality. If there is text in original file, it becomes almost unreadable in the resulting file.
在Wand之前我使用Imagemagick控制台命令,并使用选项 -density
我可以达到很好的质量。例如: convert -density 200 file.pdf file.jpg
。
Before Wand i used Imagemagick console commands, and with the option -density
i could achieve great quality. For example: convert -density 200 file.pdf file.jpg
.
什么是最惯用的改进方法Wand中生成的图像文件的图像质量?或者,至少,如何在Wand中设置密度
选项?
What is the most idiomatic way to improve image quality of the resulting image file in Wand? Or, at least, how do i set the density
option in Wand?
推荐答案
会对您有所帮助。将分辨率
选项传递给 Image
的构造函数,例如:
This would help you. Pass resolution
option to the constructor of Image
e.g.:
with Image(filename='file.pdf', resolution=200) as image:
image.compression_quality = 99
image.save(filename='file.jpg')
这篇关于提高魔杖转换质量的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!