Wolfram Language Paclet Repository
Community-contributed installable additions to the Wolfram Language
PeterBurbery`FileSystem`
ImageRead |
|
| | ||||
Details and Options
Examples
(2)
In[1]:=
Needs["PeterBurbery`FileSystem`"]
Import an image:
In[2]:=
 | ImageRead |
Out[2]=
Export a random image as a PNG file:
In[1]:=
file=Export["test.png",RandomImage[1,{1000,1000}]]
Out[1]=
test.png
Import the file with one hundred times, noting the elapsed time:
ImageRead
In[2]:=
timingA=Do
["PNG",file],100//AbsoluteTiming//First
 | ImageRead |
Out[2]=
0.0630995
Repeat the same experiment with :
Import
In[3]:=
timingB=Do[Import[file],100]//AbsoluteTiming//First
Out[3]=
19.1837
Note how is significantly faster than :
ImageRead
Import
In[4]:=
timingB/timingA
Out[4]=
304.022
However, only imports a file as an . provides many more options:
ImageRead
Image
Import
In[5]:=
Import[file,"Elements"]
Out[5]=
{AnimatedImage,Animation,AnimationRepetitions,BitDepth,BlendOperation,CameraTopOrientation,Channels,ColorMap,ColorProfileData,ColorSpace,Comments,Data,DateTime,DisplayDurations,DisposalOperation,Exif,FlashUsed,GeoPosition,GPSDateTime,Graphics,GraphicsList,Image,ImageCount,ImageList,ImageSize,IPTC,MakerNote,MetaInformation,RawData,RawExif,RawIPTC,RawXMP,RedEyeCorrection,Summary,SummarySlideView,Thumbnail,ThumbnailList,XMP}
Scope
(2)
""