问题
我可以使用Image()
模块来加载图片。 This是我如何安装kivy的方式,以便可以查看TIFF文件。但是现在,每次我加载TIFF图像时,都会一个又一个弹出警告,中断程序。
TIFFReadDirectory warning:
unknown field with tag 18246 (0x4746)
TIFFReadDirectory warning:
unknown field with tag 18249 (0x4749)
TIFFReadDirectory warning:
unknown field with tag 20752 (0x5110)
TIFFReadDirectory warning:
unknown field with tag 20753 (0x5111)
TIFFReadDirectory warning:
unknown field with tag 20754 (0x5112)
TIFFReadDirectory warning:
unknown field with tag 40092 (0x9c9c)
TIFFReadDirectory warning:
unknown field with tag 40093 (0x9c9d)
TIFFReadDirectory warning:
unknown field with tag 40094 (0x9c9e)
为澄清起见,这些警告均未出现在python日志中。这些是在程序显示TIFF文件之前出现的所有单独的警告框。我听说一个名为libtiff的库往往会导致此问题。
代码
from kivy.app import App
from kivy.uix.boxlayout import BoxLayout
from kivy.clock import Clock
from kivy.uix.image import Image
class ContainerBox(BoxLayout):
def __init__(self, **kwargs):
super(ContainerBox, self).__init__(**kwargs)
self.orientation = 'vertical'
self.picture = Image(allow_stretch=True, source='..\pics\snorlax.tif')
Clock.schedule_once(lambda dt: self.add_widget(self.picture), timeout=0.1)
class SimpleImage(App):
def build(self):
return ContainerBox()
if __name__ == '__main__':
SimpleImage().run()
技术细节
[INFO ] [deps ] Successfully imported "kivy_deps.glew" 0.1.12
[INFO ] [deps ] Successfully imported "kivy_deps.sdl2" 0.1.22
[INFO ] [Kivy ] v1.11.1
[INFO ] [Kivy ] Installed at "C:\Users\H\venvs\env1\lib\site-packages\kivy\__init__.py"
[INFO ] [Python ] v3.6.0 (v3.6.0:41df79263a11, Dec 23 2016, 08:06:12) [MSC v.1900 64 bit (AMD64)]
[INFO ] [Python ] Interpreter at "C:\Users\H\venvs\env1\Scripts\python.exe"
[INFO ] [Factory ] 184 symbols loaded
[INFO ] [Image ] Providers: img_tex, img_dds, img_sdl2, img_gif (img_pil, img_ffpyplayer ignored)
[INFO ] [Loader ] using a thread pool of 2 workers
[INFO ] [Text ] Provider: sdl2
[INFO ] [Window ] Provider: sdl2
[INFO ] [GL ] Using the "OpenGL" graphics system
[INFO ] [GL ] Backend used <sdl2>
[INFO ] [GL ] OpenGL version <b'4.0.0 - Build 9.18.10.3204'>
[INFO ] [GL ] OpenGL vendor <b'Intel'>
[INFO ] [GL ] OpenGL renderer <b'Intel(R) HD Graphics 4600'>
[INFO ] [GL ] OpenGL parsed version: 4, 0
[INFO ] [GL ] Shading version <b'4.00 - Build 9.18.10.3204'>
[INFO ] [GL ] Texture max size <8192>
[INFO ] [GL ] Texture max units <16>
[INFO ] [Window ] auto add sdl2 input provider
我对您的问题
是否可以禁止这些警告?我认为它们是由某些图书馆猕猴桃正在调用生成的。它甚至可能是我无法编辑的预编译代码。
我花了很长时间与Kivy建立一个复杂的用户界面。我真的不想丢掉所有这些工作。但我可能愿意将其迁移到C ++,从理论上讲我可以控制更多代码。那是必要的甚至是可能的吗?
答案 0 :(得分:1)
在脚本的开头,我添加了
import ctypes
libbytiff = ctypes.CDLL("libtiff-5.dll")
libbytiff.TIFFSetWarningHandler.argtypes = [ctypes.c_void_p]
libbytiff.TIFFSetWarningHandler.restype = ctypes.c_void_p
libbytiff.TIFFSetWarningHandler(None)
并且警告停止了。