Re: Most efficient way to get the pixel dimensions of a JPG

Subject: Re: Most efficient way to get the pixel dimensions of a JPG
From: Ricky Sharp <email@hidden>
Date: Thu, 6 Jan 2005 18:35:00 -0600
Delivered-to: email@hidden
Delivered-to: email@hidden

On Jan 6, 2005, at 5:46 PM, John Fox wrote:

I'm looking for a really fast and memory efficient way to determine the pixel height and width of a JPEG image. Can someone help me with this? Right now I'm creating an NSBitmapImageRep and getting its pixelsWide and pixelsHigh, but there's a lot of overhead for doing this.

For a general-purpose method which will also handle other image formats, use QuickTime.

Check out the GraphicsImportGetNaturalBounds API.

___________________________________________________________
Ricky A. Sharp         mailto:email@hidden
Instant Interactive(tm)   http://www.instantinteractive.com

_______________________________________________
Do not post admin requests to the list. They will be ignored.
Cocoa-dev mailing list      (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden



References:  
  >Most efficient way to get the pixel dimensions of a JPG (From: John Fox <email@hidden>)




Prev by Date:
Re: [Newbie] How to make application reappear after a close?

Next by Date:
image wont display in custom nsview

Previous by thread:
Re: Most efficient way to get the pixel dimensions of a JPG

Next by thread:
Scrolling a view containing two subviews (NSTextView weirdness)

Index(es):

Date
Thread













  
   Home
   Archives
   Terms/Conditions
   Contact
   RSS
   Lists
   About
 






Visit the Apple Store online or at retail locations.

1-800-MY-APPLE
Contact Apple | Terms of Use | Privacy Policy
Copyright © 2011 Apple Inc. All rights reserved.

References:
	>Most efficient way to get the pixel dimensions of a JPG (From: John Fox <email@hidden>)