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Questions tagged [nsimage]

on Mac OS X, an NSImage object is a high-level class for manipulating image data

681 questions
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How to draw a rounded NSImage

I am trying to create a NSImage or NSImageCell with rounded corners inside a NSTableView. I can't get anything to work. Here is the best I have so far inside my custom NSCell: - (void)drawInteriorWithFrame:(NSRect)frame inView:(NSView…
John Wright
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Automatic Scaling of Multipage TIFF NSImage in a CALayer

Problem: I have a multipage TIFF image (generated with tiffutil) that contains the same image at multiple pixel dimension from 256x128 px all the way up to 4096x2048 px. I want to display this image in a CALayer so that the system automatically…
Ole Begemann
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2 answers

NSImageView rounded corners + stroke

I have subclasses NSImageView and i want to draw a border around with rounded corners. It works but i need to clip off the image corners as well. Please see my screenshot: I have created this code to draw the border/corners. -…
Rasmus Styrk
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Rendering NSView containing some CALayers to an NSImage

I have an NSView that contains an NSScrollView containing a CALayer-backed NSView. I've tried all the usual methods of capturing an NSView into an NSImage (using -dataWithPDFInsideRect, NSBitmapImageRep's -initWithFocusedViewRect, etc.) However, all…
indragie
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MAC OS Xcode Swift 2.2 Convert NSImage to CIImage

I like to convert an NSImage to a CIImage in swift 2.2 for a mac app. Does anybody have some example code?
FJC
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Resize PDF NSImage OSX

I'm updating an image resizing Mac App. What I want to be able to do is if the user imports an image to be resized that has a PDFImageRep, save a new PDF file with a resolution of my choosing. So far I've tried to draw the image at a new size, as…
Mark Bridges
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Refer to an image in folder of Images.xcassets

I have the following structure in my Images.xcassets in Xcode: There is the typical method to set the image using NSImage *image = [NSImage imageNamed:@"confused"]; but is there a way to set the image by using the folder structure? For example, I…
wigging
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How to display animated GIF in Objective C on top of the layered View?

I am trying to draw animated gif on my screen in mac OSX app . I used this code to insert the gif: I can see the Gif as 1 picture it doesn't animates only static picture :( what should I add to make it animated ? #import #import…
Coldsteel48
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Writing image metadata (EXIF/TIFF/IPTC) to image file in OS X

I am creating a photo editing app, and so far I've managed to read the metadata from image files successfully (after getting an answer to this question: Reading Camera data from EXIF while opening NSImage on OS X). source =…
Can Poyrazoğlu
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How to draw a colored border around NSImage?

I did some research but all the answers I got were for iOS, how can I draw a colored border around NSImage in OSX app? I tried using imageView property of NSImage to set it's border width and color, but it doesn't seem to be working... Any kind of…
Eugene Gordin
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Cocoa memory management when using initWithBitmapDataPlanes to create NSImage

I am creating an NSImage from an unsigned char * of 24bit RGB data like so: NSBitmapImageRep *bitmap = [[NSBitmapImageRep alloc] initWithBitmapDataPlanes:(unsigned char **)&data …
spartygw
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Retina display problems when working with images

I have met problems when working on retina display. NSImage size is correct, but if I create NSBitmapImageRep from it and write it to file I get image witch's size is twice as big as original image. There is no such problem when I use it on non…
hockeyman
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NSImage + Transparency?

I'm not sure whether it's the right thing to ask for... but what I want is basically "whitewashing" an NSImage, or reducing its opacity... (sort of an "inactive" icon in Finder? something like that) What's the easiest way to achieve this? I've tried…
Dr.Kameleon
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cocoa: Read pixel color of NSImage

I have an NSImage. I would like to read the NSColor for a pixel at some x and y. Xcode seems to thing that there is a colorAtX:y: method on NSImage, but this causes a crash saying that there is no such method for NSImage. I have seen some examples…
mtmurdock
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how to change image resolution in objective-c

I need to change the resolution of the existing image in objective-c just like Apple's Preview application Tools->Adjust Size...->Resolution. Please let me know the possible solutions.
AmitSri
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