回答編集履歴
2
サンプルコード追記
test
CHANGED
|
@@ -19,3 +19,265 @@
|
|
|
19
19
|
|
|
20
20
|
|
|
21
21
|
ただし、OpenCVのウィンドウ表示機能では細かい制御ができないので、自前でウィンドウを作成／表示させないと無理かもしれません。
|
|
22
|
+
|
|
23
|
+
|
|
24
|
+
|
|
25
|
+
---
|
|
26
|
+
|
|
27
|
+
追記
|
|
28
|
+
|
|
29
|
+
カラーキーを指定して、その色の部分を透過させるウィンドウの実装例です。画像ファイルのパスや背景のサイズは適当に調整してください。
|
|
30
|
+
|
|
31
|
+
```C++
|
|
32
|
+
|
|
33
|
+
#include "opencv2\opencv.hpp"
|
|
34
|
+
|
|
35
|
+
#include <windows.h>
|
|
36
|
+
|
|
37
|
+
#include <atlbase.h>
|
|
38
|
+
|
|
39
|
+
#include <atlwin.h>
|
|
40
|
+
|
|
41
|
+
|
|
42
|
+
|
|
43
|
+
// cv::waitKeyの自前実装版
|
|
44
|
+
|
|
45
|
+
static int sKey = 0;
|
|
46
|
+
|
|
47
|
+
int myWaitKey(int iWaitTime)
|
|
48
|
+
|
|
49
|
+
{
|
|
50
|
+
|
|
51
|
+
ULONGLONG timeup = ::GetTickCount64() + iWaitTime;
|
|
52
|
+
|
|
53
|
+
do
|
|
54
|
+
|
|
55
|
+
{
|
|
56
|
+
|
|
57
|
+
MSG msg;
|
|
58
|
+
|
|
59
|
+
while(::PeekMessage(&msg, nullptr, 0, 0, PM_REMOVE))
|
|
60
|
+
|
|
61
|
+
{
|
|
62
|
+
|
|
63
|
+
if(msg.message == WM_QUIT)
|
|
64
|
+
|
|
65
|
+
return -1;
|
|
66
|
+
|
|
67
|
+
::TranslateMessage(&msg);
|
|
68
|
+
|
|
69
|
+
::DispatchMessage(&msg);
|
|
70
|
+
|
|
71
|
+
}
|
|
72
|
+
|
|
73
|
+
} while(sKey == 0 && (iWaitTime == 0 || ::GetTickCount64() < timeup));
|
|
74
|
+
|
|
75
|
+
int key = sKey;
|
|
76
|
+
|
|
77
|
+
sKey = 0;
|
|
78
|
+
|
|
79
|
+
return key;
|
|
80
|
+
|
|
81
|
+
}
|
|
82
|
+
|
|
83
|
+
|
|
84
|
+
|
|
85
|
+
// カラーキーを使った透過ウィンドウの実装例
|
|
86
|
+
|
|
87
|
+
class ColorKeyWindow : public ATL::CWindowImpl<ColorKeyWindow>
|
|
88
|
+
|
|
89
|
+
{
|
|
90
|
+
|
|
91
|
+
cv::Mat mImage;
|
|
92
|
+
|
|
93
|
+
|
|
94
|
+
|
|
95
|
+
public:
|
|
96
|
+
|
|
97
|
+
DECLARE_WND_CLASS(L"ColorKeyWindow-Class");
|
|
98
|
+
|
|
99
|
+
|
|
100
|
+
|
|
101
|
+
// コンストラクタでウィンドウを作成し、カラーキーを設定
|
|
102
|
+
|
|
103
|
+
ColorKeyWindow(const wchar_t * iName, COLORREF iColorKey = RGB(0,0,255))
|
|
104
|
+
|
|
105
|
+
{
|
|
106
|
+
|
|
107
|
+
RECT rc = {0, 0, 0, 0};
|
|
108
|
+
|
|
109
|
+
HWND hwnd = this->Create(nullptr, rc, iName, WS_POPUP, WS_EX_LAYERED);
|
|
110
|
+
|
|
111
|
+
::SetLayeredWindowAttributes(hwnd, iColorKey, 0, LWA_COLORKEY);
|
|
112
|
+
|
|
113
|
+
}
|
|
114
|
+
|
|
115
|
+
|
|
116
|
+
|
|
117
|
+
// デストラクタでウィンドウ破棄
|
|
118
|
+
|
|
119
|
+
~ColorKeyWindow()
|
|
120
|
+
|
|
121
|
+
{
|
|
122
|
+
|
|
123
|
+
this->DestroyWindow();
|
|
124
|
+
|
|
125
|
+
}
|
|
126
|
+
|
|
127
|
+
|
|
128
|
+
|
|
129
|
+
// 画像表示
|
|
130
|
+
|
|
131
|
+
void ShowImage(const cv::Mat & iMat)
|
|
132
|
+
|
|
133
|
+
{
|
|
134
|
+
|
|
135
|
+
mImage = iMat.clone();
|
|
136
|
+
|
|
137
|
+
this->SetWindowPos(nullptr, 0, 0, mImage.cols, mImage.rows, SWP_NOMOVE|SWP_NOZORDER|SWP_SHOWWINDOW);
|
|
138
|
+
|
|
139
|
+
// 実際にはWM_PAINTで表示
|
|
140
|
+
|
|
141
|
+
this->Invalidate(FALSE);
|
|
142
|
+
|
|
143
|
+
}
|
|
144
|
+
|
|
145
|
+
|
|
146
|
+
|
|
147
|
+
private:
|
|
148
|
+
|
|
149
|
+
BEGIN_MSG_MAP(HelloWindow)
|
|
150
|
+
|
|
151
|
+
MESSAGE_HANDLER(WM_PAINT, OnPaint)
|
|
152
|
+
|
|
153
|
+
MESSAGE_HANDLER(WM_NCHITTEST, OnNcHitTest)
|
|
154
|
+
|
|
155
|
+
MESSAGE_HANDLER(WM_CHAR, OnChar)
|
|
156
|
+
|
|
157
|
+
END_MSG_MAP()
|
|
158
|
+
|
|
159
|
+
|
|
160
|
+
|
|
161
|
+
LRESULT OnPaint(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
|
|
162
|
+
|
|
163
|
+
{
|
|
164
|
+
|
|
165
|
+
PAINTSTRUCT ps;
|
|
166
|
+
|
|
167
|
+
HDC hdc = BeginPaint(&ps);
|
|
168
|
+
|
|
169
|
+
if(!mImage.empty())
|
|
170
|
+
|
|
171
|
+
{
|
|
172
|
+
|
|
173
|
+
BITMAPINFO bmi = {0};
|
|
174
|
+
|
|
175
|
+
bmi.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
|
|
176
|
+
|
|
177
|
+
bmi.bmiHeader.biWidth = mImage.cols;
|
|
178
|
+
|
|
179
|
+
bmi.bmiHeader.biHeight = -mImage.rows;
|
|
180
|
+
|
|
181
|
+
bmi.bmiHeader.biPlanes = 1;
|
|
182
|
+
|
|
183
|
+
bmi.bmiHeader.biBitCount = mImage.channels() * 8;
|
|
184
|
+
|
|
185
|
+
bmi.bmiHeader.biClrImportant = BI_RGB;
|
|
186
|
+
|
|
187
|
+
::SetDIBitsToDevice(hdc, 0, 0, mImage.cols, mImage.rows, 0, 0, 0, mImage.rows, mImage.ptr(0), &bmi, DIB_RGB_COLORS);
|
|
188
|
+
|
|
189
|
+
}
|
|
190
|
+
|
|
191
|
+
EndPaint(&ps);
|
|
192
|
+
|
|
193
|
+
return 0;
|
|
194
|
+
|
|
195
|
+
}
|
|
196
|
+
|
|
197
|
+
|
|
198
|
+
|
|
199
|
+
LRESULT OnNcHitTest(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
|
|
200
|
+
|
|
201
|
+
{
|
|
202
|
+
|
|
203
|
+
// ウィンドウをマウスで移動できるようにする
|
|
204
|
+
|
|
205
|
+
return HTCAPTION;
|
|
206
|
+
|
|
207
|
+
}
|
|
208
|
+
|
|
209
|
+
|
|
210
|
+
|
|
211
|
+
LRESULT OnChar(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
|
|
212
|
+
|
|
213
|
+
{
|
|
214
|
+
|
|
215
|
+
sKey = (int)wParam;
|
|
216
|
+
|
|
217
|
+
return 0;
|
|
218
|
+
|
|
219
|
+
}
|
|
220
|
+
|
|
221
|
+
};
|
|
222
|
+
|
|
223
|
+
|
|
224
|
+
|
|
225
|
+
// サンプルプログラム
|
|
226
|
+
|
|
227
|
+
int main(int argc, char* argv[])
|
|
228
|
+
|
|
229
|
+
{
|
|
230
|
+
|
|
231
|
+
cv::Mat image = cv::imread("lena.jpg");
|
|
232
|
+
|
|
233
|
+
cv::Mat bgimage(cv::Size(800, 800), CV_8UC3);
|
|
234
|
+
|
|
235
|
+
|
|
236
|
+
|
|
237
|
+
ColorKeyWindow window(L"MyWindow");
|
|
238
|
+
|
|
239
|
+
|
|
240
|
+
|
|
241
|
+
int angle = 0;
|
|
242
|
+
|
|
243
|
+
while(1)
|
|
244
|
+
|
|
245
|
+
{
|
|
246
|
+
|
|
247
|
+
bgimage = cv::Scalar(255, 0, 0); // ブルーバックでクリア
|
|
248
|
+
|
|
249
|
+
|
|
250
|
+
|
|
251
|
+
cv::Point2d center(image.cols / 2, image.rows / 2);
|
|
252
|
+
|
|
253
|
+
cv::Mat mat = cv::getRotationMatrix2D(center, angle, 1.0);
|
|
254
|
+
|
|
255
|
+
mat.at<double>(0, 2) += (bgimage.cols - image.cols) / 2;
|
|
256
|
+
|
|
257
|
+
mat.at<double>(1, 2) += (bgimage.rows - image.rows) / 2;
|
|
258
|
+
|
|
259
|
+
cv::warpAffine(image, bgimage, mat, bgimage.size(), cv::INTER_LINEAR, cv::BORDER_TRANSPARENT);
|
|
260
|
+
|
|
261
|
+
angle = (angle + 360 - 1) % 360;
|
|
262
|
+
|
|
263
|
+
|
|
264
|
+
|
|
265
|
+
window.ShowImage(bgimage);
|
|
266
|
+
|
|
267
|
+
|
|
268
|
+
|
|
269
|
+
int key = myWaitKey(1);
|
|
270
|
+
|
|
271
|
+
if(key == '\x1b')
|
|
272
|
+
|
|
273
|
+
break;
|
|
274
|
+
|
|
275
|
+
}
|
|
276
|
+
|
|
277
|
+
return 0;
|
|
278
|
+
|
|
279
|
+
}
|
|
280
|
+
|
|
281
|
+
```
|
|
282
|
+
|
|
283
|
+
|
1
書き忘れ
test
CHANGED
|
@@ -14,7 +14,7 @@
|
|
|
14
14
|
|
|
15
15
|
|
|
16
16
|
|
|
17
|
-
1は`SetWindowRgn`関数、2と3はレイヤードウィンドウに設定した上で`SetLayeredWindowAttributes`関数で、比較的簡単に実現可能です。
|
|
17
|
+
1は`SetWindowRgn`関数、2と3はレイヤードウィンドウに設定した上で`SetLayeredWindowAttributes`関数と`UpdateLayeredWindow`関数で、比較的簡単に実現可能です。
|
|
18
18
|
|
|
19
19
|
|
|
20
20
|
|