I want to scale images to 400x400 (I am creating thumbnails). I am using the Scriptable Image Processing System (SIPS) in a Cocoa application, but the problem is poor efficiency. SIPS takes 70-90% CPU while converting 300 images in 20 seconds. Should I use the CIImage class (CIImage is the type required to use the various GPU-optimized Core Image filters) or NSImage class? Can anyone suggest a better method?
Scaling of image (scriptable image processing system)
479 Views Asked by Parag Bafna At
2
There are 2 best solutions below
1
Thomas Zoechling
On
A very simple and fast way to generate thumbnails on OS X is to use QLThumbnailImageCreate.
It's just one line of code so you can easily try out how it compares to SIPS & Core Image.
Related Questions in OBJECTIVE-C
- How do I customize NSOutlineView to have border color?
- UIWebView Screen Fitting Issue
- How to hide "Now playing url" in control center
- CloudKit: Preventing Duplicate Records
- Image and Text locations in UIButton
- setting OpenGL version in objective-C
- Setup code for xibs in iOS. -awakFromNb:
- realm db, get parent link of object
- CFBundleDocumentType is not working in myproject-Info.plist file
- UIPopoverPresentationController not rendering properly
- Using Storyboard Reference
- Pass Data between two view controllers using 'Delegation' : Objective-C
- Unexpected CALayer Vertical Flipping on 3D Rotation 'Bounce'
- Setting View orientation to portrait is ignored
- UITextField append / between dates while enforcing character limit
Related Questions in MACOS
- How do I customize NSOutlineView to have border color?
- Force sublime text to use PATH from the shell value
- Do executable files always open a terminal window on MacOS?
- setting OpenGL version in objective-C
- C std library don't appear to be linked in object file
- Cross compile simple standard C program on Linux for Mac
- How to generate request format for WCF web service method for Mac and iPhone
- Bundle Multiple Xamarin apps in one pkg installer
- How to Handle Command Line Prompt from a Cocoa App
- AVFoundation - Process each image separately
- CMYK NSImage get pixel data
- how i get the mac of ibeacon or BLE
- Set JAVA_HOME on Mac
- Finding active IPv6 interfaces under Mac OS (using Python)
- OSX: Why is my launchd agent running my script twice?
Related Questions in COCOA
- How do I customize NSOutlineView to have border color?
- How to generate request format for WCF web service method for Mac and iPhone
- How to Handle Command Line Prompt from a Cocoa App
- Change views inside NSSplitViewController
- CMYK NSImage get pixel data
- Reactive Cocoa Conditional Split ?
- Set background color of NSImageView with proportionally sized image
- Use NSWindow or NSViewController?
- Imports and includes in header files - when is it okay?
- How to prevent the app from automatically open a window when launched?
- Swift NSViewController responds to mouseDown event, but not keyDown event
- "stringByAddingPercentEncodingWithAllowedCharacters" replaces more characters than it should
- cocoa - what happen when close a window (by pressing the red X button)?
- Does it necessary to go back to main thread to update UI?
- WebView not responding to Keyboard input
Related Questions in CORE-IMAGE
- Core Image Filter Background
- CIAreaHistogram + CIHistogramDisplayFilter to get Luminance ONLY Histogram
- Core Image and memory leak, swift 3.0
- iOS Swift: CIDetectorTypeRectangle is not convertible
- Swift 3: how to save Animated images from imageView (GIF)?
- Convenience initialiser of CIFilter is giving strange exception
- Detect UV light with iOS Camera
- EXC_BAD_ACCESS while running app on device
- CIGaussianBlur image size
- iOS face detection in portrait
- CIFilters caused app to crash
- Using CIFilter with AVFoundation (iOS)
- Core Image Filter CISourceOverCompositing not working Properly
- CIFilter Combination
- Frame and Image in specific aspect Ratio
Related Questions in SIPS
- How do I know if sips -g failed?
- Insert one image into another using a mac command line tool
- BMP Image Processing in Intel Mac
- Piping an image retrieved using curl to sips to change format without saving intermediate file
- Convert a PDF to Images using sips
- How to output the sips image in directory
- Bitrise bash script - command not found
- Difference between SIP and SIPS URI?
- Is there a way to install sips on a Linux machine?
- Scaling of image (scriptable image processing system)
- Memory issue with sips (scriptable image processing system)
- mac sips program seems to ignore --padColor option
- SIPS Image Manipulation
- Use sips command on mac to trim bottom of image
- How to programmatically make Mac OS X ICNS with 10 different images using sips or other
Trending Questions
- UIImageView Frame Doesn't Reflect Constraints
- Is it possible to use adb commands to click on a view by finding its ID?
- How to create a new web character symbol recognizable by html/javascript?
- Why isn't my CSS3 animation smooth in Google Chrome (but very smooth on other browsers)?
- Heap Gives Page Fault
- Connect ffmpeg to Visual Studio 2008
- Both Object- and ValueAnimator jumps when Duration is set above API LvL 24
- How to avoid default initialization of objects in std::vector?
- second argument of the command line arguments in a format other than char** argv or char* argv[]
- How to improve efficiency of algorithm which generates next lexicographic permutation?
- Navigating to the another actvity app getting crash in android
- How to read the particular message format in android and store in sqlite database?
- Resetting inventory status after order is cancelled
- Efficiently compute powers of X in SSE/AVX
- Insert into an external database using ajax and php : POST 500 (Internal Server Error)
Popular Questions
- How do I undo the most recent local commits in Git?
- How can I remove a specific item from an array in JavaScript?
- How do I delete a Git branch locally and remotely?
- Find all files containing a specific text (string) on Linux?
- How do I revert a Git repository to a previous commit?
- How do I create an HTML button that acts like a link?
- How do I check out a remote Git branch?
- How do I force "git pull" to overwrite local files?
- How do I list all files of a directory?
- How to check whether a string contains a substring in JavaScript?
- How do I redirect to another webpage?
- How can I iterate over rows in a Pandas DataFrame?
- How do I convert a String to an int in Java?
- Does Python have a string 'contains' substring method?
- How do I check if a string contains a specific word?
I tried thumbnail genration using NSImage , CIImage and sips. All are taking same CPU (70-90%) usage but sips is faster.