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トップに関する質問swift3におけるCIimage,CGimage処理で実機テストのみトラブルが発生

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質問編集履歴

3

拡大・縮小のファイル追加

2017/05/29 14:12

投稿

退会済みユーザー
test CHANGED
File without changes
test CHANGED
@@ -4,7 +4,7 @@
4
4
 
5
5
  ・表示されている画像を走査して、加工をしたい。
6
6
 
7
- ・その前段として、画像を走査してdataを作り、そのdataから画像を再生成したい。
7
+ ・画像走査
8
8
 
9
9
 
10
10
 
@@ -46,12 +46,372 @@
46
46
 
47
47
  ```ここに言語を入力
48
48
 
49
+ ----画像拡大----
50
+
51
+
52
+
53
+ import UIKit
54
+
55
+ import Photos
56
+
57
+
58
+
59
+ class FAScrollView: UIScrollView{
60
+
61
+
62
+
63
+ // MARK: Class properties
64
+
65
+
66
+
67
+ var imageView:UIImageView = UIImageView()
68
+
69
+ var imageToDisplay:UIImage? = nil{
70
+
71
+ didSet{
72
+
73
+ zoomScale = 1.0
74
+
75
+ minimumZoomScale = 1.0
76
+
77
+ imageView.image = imageToDisplay
78
+
79
+ imageView.frame.size = sizeForImageToDisplay()
80
+
81
+ imageView.center = center
82
+
83
+ contentSize = imageView.frame.size
84
+
85
+ contentInset = UIEdgeInsetsMake(0, 0, 0, 0)
86
+
87
+ updateLayout()
88
+
89
+ }
90
+
91
+ }
92
+
93
+ var gridView:UIView = Bundle.main.loadNibNamed("FAGridView", owner: nil, options: nil)?.first as! UIView
94
+
95
+
96
+
97
+
98
+
99
+ // MARK : Class Functions
100
+
101
+
102
+
103
+ override func awakeFromNib() {
104
+
105
+ super.awakeFromNib()
106
+
107
+ viewConfigurations()
108
+
109
+ }
110
+
111
+
112
+
113
+ func updateLayout() {
114
+
115
+ imageView.center = center;
116
+
117
+ var frame:CGRect = imageView.frame;
118
+
119
+ if (frame.origin.x < 0) { frame.origin.x = 0 }
120
+
121
+ if (frame.origin.y < 0) { frame.origin.y = 0 }
122
+
123
+ imageView.frame = frame
124
+
125
+ }
126
+
127
+
128
+
129
+ func zoom() {
130
+
131
+ if (zoomScale <= 1.0) { setZoomScale(zoomScaleWithNoWhiteSpaces(), animated: true) }
132
+
133
+ else{ setZoomScale(minimumZoomScale, animated: true) }
134
+
135
+ updateLayout()
136
+
137
+ }
138
+
139
+
140
+
141
+
142
+
143
+
144
+
145
+ ---画像拡大→画面遷移----
146
+
147
+
148
+
149
+ import UIKit
150
+
151
+ import Photos
152
+
153
+
154
+
155
+ class FAImageCropperVC: UIViewController {
156
+
157
+
158
+
159
+ // MARK: IBOutlets
160
+
161
+
162
+
163
+ @IBOutlet weak var scrollContainerView: UIView!
164
+
165
+ @IBOutlet weak var scrollView: FAScrollView!
166
+
167
+ @IBOutlet weak var collectionView: UICollectionView!
168
+
169
+ @IBOutlet weak var btnZoom: UIButton!
170
+
171
+ @IBOutlet weak var btnCrop: UIButton!
172
+
173
+ @IBAction func zoom(_ sender: Any) {
174
+
175
+ scrollView.zoom()
176
+
177
+ }
178
+
179
+ @IBAction func crop(_ sender: Any) {
180
+
181
+ croppedImage = captureVisibleRect()
182
+
183
+ performSegue(withIdentifier: "FADetailViewSegue", sender: nil)
184
+
185
+ }
186
+
187
+
188
+
189
+
190
+
191
+
192
+
193
+ // MARK: Public Properties
194
+
195
+
196
+
197
+ var photos:[PHAsset]!
198
+
199
+
200
+
201
+
202
+
203
+
204
+
205
+ // MARK: Private Properties
206
+
207
+
208
+
209
+ private let imageLoader = FAImageLoader()
210
+
211
+ private var croppedImage: UIImage? = nil
212
+
213
+
214
+
215
+
216
+
217
+
218
+
219
+ // MARK: LifeCycle
220
+
221
+
222
+
223
+ override func viewDidLoad() {
224
+
225
+ super.viewDidLoad()
226
+
227
+ viewConfigurations() // zoom,cropボタン
228
+
229
+ checkForPhotosPermission()
230
+
231
+ }
232
+
233
+
234
+
235
+ override func didReceiveMemoryWarning() {
236
+
237
+ super.didReceiveMemoryWarning()
238
+
239
+ // Dispose of any resources that can be recreated.
240
+
241
+ }
242
+
243
+
244
+
245
+ override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
246
+
247
+
248
+
249
+ if segue.identifier == "FADetailViewSegue" {
250
+
251
+
252
+
253
+ let detailVC = segue.destination as? FADetailVC
254
+
255
+ detailVC?.croppedImage = croppedImage
256
+
257
+ }
258
+
259
+ }
260
+
261
+
262
+
263
+ // MARK: Private Functions
264
+
265
+
266
+
267
+ private func checkForPhotosPermission(){
268
+
269
+ //※省略
270
+
271
+ }
272
+
273
+ private func viewConfigurations() {
274
+
275
+ btnCrop.layer.cornerRadius = btnCrop.frame.size.width/2
276
+
277
+ btnZoom.layer.cornerRadius = btnZoom.frame.size.width/2
278
+
279
+ }
280
+
281
+
282
+
283
+ private func configureImageCropper(assets:[PHAsset]){
284
+
285
+
286
+
287
+ if assets.count != 0{
288
+
289
+ photos = assets
290
+
291
+ collectionView.delegate = self
292
+
293
+ collectionView.dataSource = self
294
+
295
+ collectionView.reloadData()
296
+
297
+ selectDefaultImage()
298
+
299
+ }
300
+
301
+ }
302
+
303
+
304
+
305
+ private func selectDefaultImage(){
306
+
307
+ collectionView.selectItem(at: IndexPath(item: 0, section: 0), animated: true, scrollPosition: .top)
308
+
309
+ selectImageFromAssetAtIndex(index: 0)
310
+
311
+ }
312
+
313
+
314
+
315
+
316
+
317
+ private func captureVisibleRect() -> UIImage{
318
+
319
+
320
+
321
+ var croprect = CGRect.zero
322
+
323
+ let xOffset = (scrollView.imageToDisplay?.size.width)! / scrollView.contentSize.width;
324
+
325
+ let yOffset = (scrollView.imageToDisplay?.size.height)! / scrollView.contentSize.height;
326
+
327
+
328
+
329
+ croprect.origin.x = scrollView.contentOffset.x * xOffset;
330
+
331
+ croprect.origin.y = scrollView.contentOffset.y * yOffset;
332
+
333
+
334
+
335
+ let normalizedWidth = (scrollView?.frame.width)! / (scrollView?.contentSize.width)!
336
+
337
+ let normalizedHeight = (scrollView?.frame.height)! / (scrollView?.contentSize.height)!
338
+
339
+
340
+
341
+ croprect.size.width = scrollView.imageToDisplay!.size.width * normalizedWidth
342
+
343
+ croprect.size.height = scrollView.imageToDisplay!.size.height * normalizedHeight
344
+
345
+
346
+
347
+ let cr: CGImage? = scrollView.imageView.image?.cgImage?.cropping(to: croprect)
348
+
349
+ let cropped = UIImage(cgImage: cr!)
350
+
351
+
352
+
353
+ return cropped
354
+
355
+
356
+
357
+ }
358
+
359
+ private func isSquareImage() -> Bool{
360
+
361
+ let image = scrollView.imageToDisplay
362
+
363
+ if image?.size.width == image?.size.height { return true }
364
+
365
+ else { return false }
366
+
367
+ }
368
+
369
+
370
+
371
+
372
+
373
+ // MARK: Public Functions
374
+
375
+
376
+
377
+ func selectImageFromAssetAtIndex(index:NSInteger){
378
+
379
+
380
+
381
+ FAImageLoader.imageFrom(asset: photos[index], size: PHImageManagerMaximumSize) { (image) in
382
+
383
+ DispatchQueue.main.async {
384
+
385
+ self.displayImageInScrollView(image: image)
386
+
387
+ }
388
+
389
+ }
390
+
391
+ }
392
+
393
+
394
+
395
+ func displayImageInScrollView(image:UIImage){
396
+
397
+ self.scrollView.imageToDisplay = image
398
+
399
+ if isSquareImage() { btnZoom.isHidden = true }
400
+
401
+ else { btnZoom.isHidden = false }
402
+
403
+ }
404
+
405
+ }
406
+
407
+
408
+
409
+
410
+
49
411
  ----呼び出し元------
50
412
 
51
413
  private func viewConfigurations(){
52
414
 
53
- print("viewconfig呼ばれる")
54
-
55
415
  imageView.image = croppedImage
56
416
 
57
417
  imageView.contentMode = UIViewContentMode.scaleAspectFit
@@ -120,7 +480,7 @@
120
480
 
121
481
  let imageData = image.cgImage!.dataProvider!.data //cgimageのデータ
122
482
 
123
- let datalenght = CFDataGetLength(imageData) //表示されている画像の長さとも違う。。
483
+ let datalenght = CFDataGetLength(imageData)
124
484
 
125
485
  var rawData = [UInt8](repeating: 0, count: datalenght)
126
486
 
@@ -170,12 +530,6 @@
170
530
 
171
531
 
172
532
 
173
-
174
-
175
-
176
-
177
-
178
-
179
533
  ```
180
534
 
181
535
 

2

ソースと具体的な事象を更新

2017/05/29 14:12

投稿

退会済みユーザー
test CHANGED
File without changes
test CHANGED
@@ -12,9 +12,9 @@
12
12
 
13
13
  PC上のシミュレーターでは処理が上手くいくのだが、実機を用いたテストで上手くいかない。
14
14
 
15
- エラーは吐いていないが、処理が正常に終了していない？
15
+ 具体的には、ボタンクリックで該当の処理が走り、画像に表示されるはずだが、画像が更新されない。
16
16
 
17
- 下記のボタンをクリックしたあと、ボタンが押した状態から戻らない（具体的には、ボタンの文字が白っぽくなって戻らない。他の処理を動かそうとしてもう）
17
+ ボタンもクリックされた状態から戻らない。
18
18
 
19
19
 
20
20
 
@@ -86,7 +86,7 @@
86
86
 
87
87
 
88
88
 
89
- ----呼び出し先------
89
+ ----呼び出し先（TransparentImage）------
90
90
 
91
91
  import UIKit
92
92
 
@@ -102,69 +102,39 @@
102
102
 
103
103
 
104
104
 
105
+
106
+
105
107
  let editedimage:UIImage
106
108
 
109
+ // let width :Int = Int((image.size.width))
110
+
107
111
  let width :Int = Int((image.cgImage!.width))
112
+
113
+ // let height :Int = Int((image.size.height))
108
114
 
109
115
  let height :Int = Int((image.cgImage!.height))
110
116
 
111
117
 
112
118
 
113
- // /* ver1
119
+
114
-
115
- let scale :Int = Int(UIScreen.main.scale) //
116
120
 
117
121
  let imageData = image.cgImage!.dataProvider!.data //cgimageのデータ
118
122
 
119
- let datalenght = CFDataGetLength(imageData)
123
+ let datalenght = CFDataGetLength(imageData) //表示されている画像の長さとも違う。。
120
124
 
121
125
  var rawData = [UInt8](repeating: 0, count: datalenght)
122
126
 
123
- CFDataGetBytes(imageData,CFRange(location: 0, length: datalenght),&rawData)
127
+ CFDataGetBytes(imageData,CFRange(location: 0, length: datalenght),&rawData) //画像データをrawDataへ転送
124
-
125
- print("datalenght:\(datalenght)") //画像のdatalengthの長さ
126
-
127
-
128
-
129
-
130
-
131
- var address : Int
132
-
133
-
134
-
135
-
136
-
137
- //画像の走査処理
138
-
139
- for x in 0..<width{
140
-
141
- for y in 0..<height{
142
-
143
- address = ((width * y) + x) * 4
144
128
 
145
129
 
146
130
 
147
131
 
148
132
 
149
- rawData[address+1] = 0
133
+ let provider = CGDataProvider(dataInfo: nil,data: rawData, size: datalenght,releaseData: releaseData)
150
134
 
151
- }
135
+ let colorSpaceRef = image.cgImage!.colorSpace
152
136
 
153
- }
154
-
155
- let provider = CGDataProvider(dataInfo: nil,data: rawData, size: datalenght,releaseData: releaseData)
156
-
157
-
158
-
159
- //CGImage(ビットマップ画像)を作成
160
-
161
- let colorSpaceRef = CGColorSpaceCreateDeviceRGB()
137
+ let bitmapInfo = image.cgImage!.bitmapInfo
162
-
163
- let bitmapInfo = CGBitmapInfo(rawValue: CGImageAlphaInfo.premultipliedFirst.rawValue) /
164
-
165
-
166
-
167
- //実データより取得
168
138
 
169
139
  let bitsPerComponent:Int = image.cgImage!.bitsPerComponent
170
140
 
@@ -172,23 +142,23 @@
172
142
 
173
143
  let bytesPerRow = image.cgImage!.bytesPerRow
174
144
 
175
- let cgImage = CGImage(width: width, height: height, bitsPerComponent: bitsPerComponent, bitsPerPixel: bitsPerPixel, bytesPerRow:bytesPerRow, space: colorSpaceRef, bitmapInfo: bitmapInfo, provider: provider!, decode: nil, shouldInterpolate: false, intent: .defaultIntent)
145
+ let cgImage = CGImage(width: width, height: height, bitsPerComponent: bitsPerComponent, bitsPerPixel: bitsPerPixel, bytesPerRow:bytesPerRow, space: colorSpaceRef!, bitmapInfo: bitmapInfo, provider: provider!, decode: nil, shouldInterpolate: false, intent: .defaultIntent)
176
146
 
177
-
178
-
179
- editedimage = UIImage(cgImage:cgImage!, scale:CGFloat(scale), orientation:UIImageOrientation.up)
147
+ editedimage = UIImage(cgImage:cgImage!, scale:image.scale, orientation:image.imageOrientation)
180
148
 
181
149
 
182
150
 
183
151
  return editedimage
184
-
185
-
186
152
 
187
153
  }
188
154
 
189
155
 
190
156
 
191
157
  let releaseData: CGDataProviderReleaseDataCallback = { (info: UnsafeMutableRawPointer?, data: UnsafeRawPointer, size: Int) -> () in
158
+
159
+ // https://developer.apple.com/reference/coregraphics/cgdataproviderreleasedatacallback
160
+
161
+ // N.B. 'CGDataProviderRelease' is unavailable: Core Foundation objects are automatically memory managed
192
162
 
193
163
  print("callback")
194
164
 
@@ -197,8 +167,6 @@
197
167
  }
198
168
 
199
169
  }
200
-
201
-
202
170
 
203
171
 
204
172
 

1

ソースを修正

2017/05/27 04:47

投稿

退会済みユーザー
test CHANGED
File without changes
test CHANGED
@@ -42,7 +42,7 @@
42
42
 
43
43
 
44
44
 
45
- ###該当のソースコード
45
+ ###該当のソースコード ※修正しました
46
46
 
47
47
  ```ここに言語を入力
48
48
 
@@ -54,7 +54,7 @@
54
54
 
55
55
  imageView.image = croppedImage
56
56
 
57
- imageView.contentMode = UIViewContentMode.scaleAspectFill
57
+ imageView.contentMode = UIViewContentMode.scaleAspectFit
58
58
 
59
59
  }
60
60
 
@@ -104,18 +104,26 @@
104
104
 
105
105
  let editedimage:UIImage
106
106
 
107
- let width :Int = Int((image.size.width))
107
+ let width :Int = Int((image.cgImage!.width))
108
-
108
+
109
- let height :Int = Int((image.size.height))
109
+ let height :Int = Int((image.cgImage!.height))
110
+
111
+
112
+
110
-
113
+ // /* ver1
114
+
115
+ let scale :Int = Int(UIScreen.main.scale) //
116
+
111
- let imageData = image.cgImage!.dataProvider!.data
117
+ let imageData = image.cgImage!.dataProvider!.data //cgimageのデータ
112
-
118
+
113
- let datalenght = CFDataGetLength(imageData)
119
+ let datalenght = CFDataGetLength(imageData)
114
120
 
115
121
  var rawData = [UInt8](repeating: 0, count: datalenght)
116
122
 
117
123
  CFDataGetBytes(imageData,CFRange(location: 0, length: datalenght),&rawData)
118
124
 
125
+ print("datalenght:\(datalenght)") //画像のdatalengthの長さ
126
+
119
127
 
120
128
 
121
129
 
@@ -128,52 +136,54 @@
128
136
 
129
137
  //画像の走査処理
130
138
 
131
- for y in 0...height-2{
132
-
133
- for x in 1...width{
139
+ for x in 0..<width{
140
+
141
+ for y in 0..<height{
134
142
 
135
143
  address = ((width * y) + x) * 4
136
144
 
137
145
 
138
146
 
147
+
148
+
139
149
  rawData[address+1] = 0
140
150
 
141
- rawData[address] = 0
142
-
143
- rawData[address+2] = 0
144
-
145
- rawData[address+3] = 0
146
-
147
151
  }
148
152
 
149
153
  }
150
154
 
151
- // */
152
-
153
- //CGDataProvider(データの場所や種類の情報)を作成
154
-
155
155
  let provider = CGDataProvider(dataInfo: nil,data: rawData, size: datalenght,releaseData: releaseData)
156
156
 
157
157
 
158
158
 
159
159
  //CGImage(ビットマップ画像)を作成
160
160
 
161
- let bitsPerComponent:Int = 8 //画素は8bit
162
-
163
- let bitsPerPixel:Int = bitsPerComponent * 4 //pxあたりのビット数:4色より
164
-
165
- let bytesPerRow:Int = Int(4) * width //1列あたりのバイト数
166
-
167
161
  let colorSpaceRef = CGColorSpaceCreateDeviceRGB()
168
162
 
169
- let bitmapInfo = CGBitmapInfo(rawValue: CGImageAlphaInfo.premultipliedFirst.rawValue)
163
+ let bitmapInfo = CGBitmapInfo(rawValue: CGImageAlphaInfo.premultipliedFirst.rawValue) /
164
+
165
+
166
+
167
+ //実データより取得
168
+
169
+ let bitsPerComponent:Int = image.cgImage!.bitsPerComponent
170
+
171
+ let bitsPerPixel = image.cgImage!.bitsPerPixel
172
+
173
+ let bytesPerRow = image.cgImage!.bytesPerRow
170
174
 
171
175
  let cgImage = CGImage(width: width, height: height, bitsPerComponent: bitsPerComponent, bitsPerPixel: bitsPerPixel, bytesPerRow:bytesPerRow, space: colorSpaceRef, bitmapInfo: bitmapInfo, provider: provider!, decode: nil, shouldInterpolate: false, intent: .defaultIntent)
172
176
 
177
+
178
+
173
- editedimage = UIImage(cgImage: cgImage!)
179
+ editedimage = UIImage(cgImage:cgImage!, scale:CGFloat(scale), orientation:UIImageOrientation.up)
180
+
181
+
174
182
 
175
183
  return editedimage
176
184
 
185
+
186
+
177
187
  }
178
188
 
179
189