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Different UIImage RGB data output in Swift and Objective-C apps

score 274 · Answer 1 · 2020-10-26T05:38:50.990000

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Different UIImage RGB data output in Swift and Objective-C apps

274 views Asked by Andrey Soloviev At 26 October 2020 at 05:38

score 191 · Answer 2 · 2020-03-16T15:43:36.740000

Get pixel RGB wrong by CGBitmapContextCreate

191 views Asked by Yic At 16 March 2020 at 15:43

score 207 · Answer 3 · 2019-06-28T04:55:25.143000

Swift version get wrong pixels data but the Object-c version get the right pixels data from the same image using method "CGBitmapContextCreate"

207 views Asked by Changwei At 28 June 2019 at 04:55

score 666 · Answer 4 · 2018-07-18T04:17:34.207000

Exporting extremely large images in iOS

666 views Asked by N.W At 18 July 2018 at 04:17

score 1064 · Answer 5 · 2018-03-26T07:47:48.920000

CGBitmapContextCreate returns NULL for some pixels of width and height

1k views Asked by Nyein Ei Ei Tun At 26 March 2018 at 07:47

score 363 · Answer 6 · 2017-09-10T20:14:56.267000

CGContextDrawLayerInRect from CGBitmapContextCreate failing iPhone 7 Plus

363 views Asked by drewster At 10 September 2017 at 20:14

score 795 · Answer 7 · 2016-07-01T15:35:41.250000

Convert PDF to CGImage turns image to negative

795 views Asked by qwerty_so At 01 July 2016 at 15:35

score 349 · Answer 8 · 2015-11-04T11:51:23.987000

how to change color of part of UIImage?

349 views Asked by krishna patel At 04 November 2015 at 11:51

score 208 · Answer 9 · 2015-10-27T14:21:00.317000

Generating Wrong Image with CGBitmapContext

208 views Asked by Murilo Amaru Gomes At 27 October 2015 at 14:21

score 731 · Answer 10 · 2015-09-17T10:22:17.693000

CGContextDrawImage error, how to allocate the buffer?

731 views Asked by Alexey Demidov At 17 September 2015 at 10:22

score 4557 · Answer 11 · 2015-08-19T21:03:24.600000

Swift 2&3: How to Use CGBitmapContextCreate

4.5k views Asked by zumzum At 19 August 2015 at 21:03

score 589 · Answer 12 · 2015-07-02T06:36:17.943000

Image Generation from TrueType font in Swift/Cocoa

589 views Asked by beeb At 02 July 2015 at 06:36

score 192 · Answer 13 · 2015-06-17T07:28:31.820000

png uncompressed by CGContextDrawImage is different from orign png image in xcode

192 views Asked by jayzhen At 17 June 2015 at 07:28

score 1931 · Answer 14 · 2015-03-02T02:50:39.670000

Convert an image to a 16bit color image

1.9k views Asked by huong At 02 March 2015 at 02:50

score 413 · Answer 15 · 2014-11-19T07:19:48.810000

CGBitmapContextCreate gives EXC_BAD_ACCESS in iPhone 6+

413 views Asked by Gokul At 19 November 2014 at 07:19

score 1006 · Answer 16 · 2014-08-08T16:16:15.370000

Why is CGBitmapContextCreateImage slower than [UIImage initWithData:]?

1k views Asked by Dale Myers At 08 August 2014 at 16:16

score 294 · Answer 17 · 2014-02-24T16:15:54.247000

iOS: not getting correct result with CGBitmapContextCreate in method call

294 views Asked by Unheilig At 24 February 2014 at 16:15

score 181 · Answer 18 · 2014-01-24T09:47:27.500000

Alpha Images convert to .mov

181 views Asked by DogCoffee At 24 January 2014 at 09:47

score 9540 · Answer 19 · 2013-12-04T09:19:57.173000

Drawing UIImage using CGBitmapContextCreate - Full Size Image for Texture - iOS

9.5k views Asked by GuybrushThreepwood At 04 December 2013 at 09:19

score 498 · Answer 20 · 2013-11-26T12:58:25.610000

"CGBitmapContextCreate: unsupported parameter combination" errors when running the official sample code "Current Location" in my Iphone5s

498 views Asked by user2958589 At 26 November 2013 at 12:58

TechQA.

List Question

Different UIImage RGB data output in Swift and Objective-C apps

Get pixel RGB wrong by CGBitmapContextCreate

Swift version get wrong pixels data but the Object-c version get the right pixels data from the same image using method "CGBitmapContextCreate"

Exporting extremely large images in iOS

CGBitmapContextCreate returns NULL for some pixels of width and height

CGContextDrawLayerInRect from CGBitmapContextCreate failing iPhone 7 Plus

Convert PDF to CGImage turns image to negative

how to change color of part of UIImage?

Generating Wrong Image with CGBitmapContext

CGContextDrawImage error, how to allocate the buffer?

Swift 2&3: How to Use CGBitmapContextCreate

Image Generation from TrueType font in Swift/Cocoa

png uncompressed by CGContextDrawImage is different from orign png image in xcode

Convert an image to a 16bit color image

CGBitmapContextCreate gives EXC_BAD_ACCESS in iPhone 6+

Why is CGBitmapContextCreateImage slower than [UIImage initWithData:]?

iOS: not getting correct result with CGBitmapContextCreate in method call

Alpha Images convert to .mov

Drawing UIImage using CGBitmapContextCreate - Full Size Image for Texture - iOS

"CGBitmapContextCreate: unsupported parameter combination" errors when running the official sample code "Current Location" in my Iphone5s

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