| 1 | import os |
|---|
| 2 | import sys |
|---|
| 3 | import wx |
|---|
| 4 | import numpy as np |
|---|
| 5 | import matplotlib |
|---|
| 6 | matplotlib.interactive(False) |
|---|
| 7 | #Use the WxAgg back end. The Wx one takes too long to render |
|---|
| 8 | matplotlib.use('WXAgg') |
|---|
| 9 | from sas.sasgui.guiframe.local_perspectives.plotting.SimplePlot import PlotFrame |
|---|
| 10 | #import matplotlib.pyplot as plt |
|---|
| 11 | import matplotlib.image as mpimg |
|---|
| 12 | import matplotlib.colors as colors |
|---|
| 13 | from sas.sasgui.guiframe.events import StatusEvent |
|---|
| 14 | from sas.sasgui.perspectives.calculator.calculator_widgets import InputTextCtrl |
|---|
| 15 | from sas.sascalc.dataloader.data_info import Data2D |
|---|
| 16 | from sas.sascalc.dataloader.data_info import Detector |
|---|
| 17 | from sas.sascalc.dataloader.manipulations import reader2D_converter |
|---|
| 18 | from sas.sasgui.guiframe.documentation_window import DocumentationWindow |
|---|
| 19 | |
|---|
| 20 | _BOX_WIDTH = 60 |
|---|
| 21 | IS_WIN = True |
|---|
| 22 | if sys.platform.count("win32") > 0: |
|---|
| 23 | _DIALOG_WIDTH = 400 |
|---|
| 24 | else: |
|---|
| 25 | _DIALOG_WIDTH = 480 |
|---|
| 26 | IS_WIN = False |
|---|
| 27 | |
|---|
| 28 | class ImageView: |
|---|
| 29 | """ |
|---|
| 30 | Open a file dialog to allow the user to select a given file. |
|---|
| 31 | Display the loaded data if available. |
|---|
| 32 | """ |
|---|
| 33 | def __init__(self, parent=None): |
|---|
| 34 | """ |
|---|
| 35 | Init |
|---|
| 36 | """ |
|---|
| 37 | self.parent = parent |
|---|
| 38 | |
|---|
| 39 | def load(self): |
|---|
| 40 | """ |
|---|
| 41 | load image files |
|---|
| 42 | """ |
|---|
| 43 | parent = self.parent |
|---|
| 44 | if parent == None: |
|---|
| 45 | location = os.getcwd() |
|---|
| 46 | else: |
|---|
| 47 | location = parent._default_save_location |
|---|
| 48 | path_list = self.choose_data_file(location=location) |
|---|
| 49 | if path_list == None: |
|---|
| 50 | return |
|---|
| 51 | if len(path_list) >= 0 and not(path_list[0]is None): |
|---|
| 52 | if parent != None: |
|---|
| 53 | parent._default_save_location = os.path.dirname(path_list[0]) |
|---|
| 54 | err_msg = '' |
|---|
| 55 | for file_path in path_list: |
|---|
| 56 | basename = os.path.basename(file_path) |
|---|
| 57 | _, extension = os.path.splitext(basename) |
|---|
| 58 | try: |
|---|
| 59 | img = mpimg.imread(file_path) |
|---|
| 60 | is_png = extension.lower() == '.png' |
|---|
| 61 | plot_frame = ImageFrame(parent, -1, basename, img) |
|---|
| 62 | plot_frame.Show(False) |
|---|
| 63 | ax = plot_frame.plotpanel |
|---|
| 64 | if not is_png: |
|---|
| 65 | ax.subplot.set_ylim(ax.subplot.get_ylim()[::-1]) |
|---|
| 66 | ax.subplot.set_xlabel('x [pixel]') |
|---|
| 67 | ax.subplot.set_ylabel('y [pixel]') |
|---|
| 68 | ax.figure.subplots_adjust(left=0.15, bottom=0.1, |
|---|
| 69 | right=0.95, top=0.95) |
|---|
| 70 | plot_frame.SetTitle('Picture -- %s --' % basename) |
|---|
| 71 | plot_frame.Show(True) |
|---|
| 72 | if parent != None: |
|---|
| 73 | parent.put_icon(plot_frame) |
|---|
| 74 | except: |
|---|
| 75 | err_msg += "Failed to load '%s'.\n" % basename |
|---|
| 76 | if err_msg: |
|---|
| 77 | if parent is not None: |
|---|
| 78 | wx.PostEvent(parent, StatusEvent(status=err_msg, info="error")) |
|---|
| 79 | else: |
|---|
| 80 | print err_msg |
|---|
| 81 | |
|---|
| 82 | def choose_data_file(self, location=None): |
|---|
| 83 | """ |
|---|
| 84 | Open a file dialog to allow loading a file |
|---|
| 85 | """ |
|---|
| 86 | path = None |
|---|
| 87 | if location == None: |
|---|
| 88 | location = os.getcwd() |
|---|
| 89 | dlg = wx.FileDialog(self.parent, "Image Viewer: Choose a image file", |
|---|
| 90 | location, "", "", style=wx.FD_OPEN | wx.FD_MULTIPLE) |
|---|
| 91 | if dlg.ShowModal() == wx.ID_OK: |
|---|
| 92 | path = dlg.GetPaths() |
|---|
| 93 | else: |
|---|
| 94 | return None |
|---|
| 95 | dlg.Destroy() |
|---|
| 96 | return path |
|---|
| 97 | |
|---|
| 98 | class ImageFrame(PlotFrame): |
|---|
| 99 | """ |
|---|
| 100 | Frame for simple plot |
|---|
| 101 | """ |
|---|
| 102 | def __init__(self, parent, id, title, image=None, scale='log_{10}', |
|---|
| 103 | size=wx.Size(550, 470)): |
|---|
| 104 | """ |
|---|
| 105 | comment |
|---|
| 106 | :Param data: image array got from imread() of matplotlib [narray] |
|---|
| 107 | :param parent: parent panel/container |
|---|
| 108 | """ |
|---|
| 109 | # Initialize the Frame object |
|---|
| 110 | PlotFrame.__init__(self, parent, id, title, scale, size, |
|---|
| 111 | show_menu_icons=False) |
|---|
| 112 | self.parent = parent |
|---|
| 113 | self.data = image |
|---|
| 114 | self.file_name = title |
|---|
| 115 | |
|---|
| 116 | menu = wx.Menu() |
|---|
| 117 | id = wx.NewId() |
|---|
| 118 | item = wx.MenuItem(menu, id, "&Convert to Data") |
|---|
| 119 | menu.AppendItem(item) |
|---|
| 120 | wx.EVT_MENU(self, id, self.on_set_data) |
|---|
| 121 | self.menu_bar.Append(menu, "&Image") |
|---|
| 122 | |
|---|
| 123 | menu_help = wx.Menu() |
|---|
| 124 | id = wx.NewId() |
|---|
| 125 | item = wx.MenuItem(menu_help, id, "&HowTo") |
|---|
| 126 | menu_help.AppendItem(item) |
|---|
| 127 | wx.EVT_MENU(self, id, self.on_help) |
|---|
| 128 | self.menu_bar.Append(menu_help, "&Help") |
|---|
| 129 | |
|---|
| 130 | self.SetMenuBar(self.menu_bar) |
|---|
| 131 | self.im_show(image) |
|---|
| 132 | |
|---|
| 133 | def on_set_data(self, event): |
|---|
| 134 | """ |
|---|
| 135 | Rescale the x y range, make 2D data and send it to data explore |
|---|
| 136 | """ |
|---|
| 137 | title = self.file_name |
|---|
| 138 | self.panel = SetDialog(parent=self, title=title, image=self.data) |
|---|
| 139 | self.panel.ShowModal() |
|---|
| 140 | |
|---|
| 141 | def on_help(self, event): |
|---|
| 142 | """ |
|---|
| 143 | Bring up Image Viewer Documentation from the image viewer window |
|---|
| 144 | whenever the help menu item "how to" is clicked. Calls |
|---|
| 145 | DocumentationWindow with the path of the location within the |
|---|
| 146 | documentation tree (after /doc/ ....". |
|---|
| 147 | |
|---|
| 148 | :param evt: Triggers on clicking "how to" in help menu |
|---|
| 149 | """ |
|---|
| 150 | |
|---|
| 151 | _TreeLocation = "user/sasgui/perspectives/calculator/" |
|---|
| 152 | _TreeLocation += "image_viewer_help.html" |
|---|
| 153 | _doc_viewer = DocumentationWindow(self, -1, _TreeLocation, "", |
|---|
| 154 | "Image Viewer Help") |
|---|
| 155 | |
|---|
| 156 | |
|---|
| 157 | class SetDialog(wx.Dialog): |
|---|
| 158 | """ |
|---|
| 159 | Dialog for Data Set |
|---|
| 160 | """ |
|---|
| 161 | def __init__(self, parent, id= -1, title="Convert to Data", image=None, |
|---|
| 162 | size=(_DIALOG_WIDTH, 270)): |
|---|
| 163 | wx.Dialog.__init__(self, parent, id, title, size) |
|---|
| 164 | # parent |
|---|
| 165 | self.parent = parent |
|---|
| 166 | self.base = parent.parent |
|---|
| 167 | self.title = title |
|---|
| 168 | self.image = np.array(image) |
|---|
| 169 | self.z_ctrl = None |
|---|
| 170 | self.xy_ctrls = [] |
|---|
| 171 | self.is_png = self._get_is_png() |
|---|
| 172 | self._build_layout() |
|---|
| 173 | my_title = "Convert Image to Data - %s -" % self.title |
|---|
| 174 | self.SetTitle(my_title) |
|---|
| 175 | self.SetSize(size) |
|---|
| 176 | |
|---|
| 177 | def _get_is_png(self): |
|---|
| 178 | """ |
|---|
| 179 | Get if the image file is png |
|---|
| 180 | """ |
|---|
| 181 | _, extension = os.path.splitext(self.title) |
|---|
| 182 | return extension.lower() == '.png' |
|---|
| 183 | |
|---|
| 184 | def _build_layout(self): |
|---|
| 185 | """ |
|---|
| 186 | Layout |
|---|
| 187 | """ |
|---|
| 188 | vbox = wx.BoxSizer(wx.VERTICAL) |
|---|
| 189 | zbox = wx.BoxSizer(wx.HORIZONTAL) |
|---|
| 190 | xbox = wx.BoxSizer(wx.HORIZONTAL) |
|---|
| 191 | ybox = wx.BoxSizer(wx.HORIZONTAL) |
|---|
| 192 | btnbox = wx.BoxSizer(wx.VERTICAL) |
|---|
| 193 | |
|---|
| 194 | sb_title = wx.StaticBox(self, -1, 'Transform Axes') |
|---|
| 195 | boxsizer = wx.StaticBoxSizer(sb_title, wx.VERTICAL) |
|---|
| 196 | z_title = wx.StaticText(self, -1, 'z values (range: 0 - 255) to:') |
|---|
| 197 | ztime_title = wx.StaticText(self, -1, 'z *') |
|---|
| 198 | x_title = wx.StaticText(self, -1, 'x values from pixel # to:') |
|---|
| 199 | xmin_title = wx.StaticText(self, -1, 'xmin:') |
|---|
| 200 | xmax_title = wx.StaticText(self, -1, 'xmax:') |
|---|
| 201 | y_title = wx.StaticText(self, -1, 'y values from pixel # to:') |
|---|
| 202 | ymin_title = wx.StaticText(self, -1, 'ymin: ') |
|---|
| 203 | ymax_title = wx.StaticText(self, -1, 'ymax:') |
|---|
| 204 | z_ctl = InputTextCtrl(self, -1, size=(_BOX_WIDTH , 20), |
|---|
| 205 | style=wx.TE_PROCESS_ENTER) |
|---|
| 206 | |
|---|
| 207 | xmin_ctl = InputTextCtrl(self, -1, size=(_BOX_WIDTH, 20), |
|---|
| 208 | style=wx.TE_PROCESS_ENTER) |
|---|
| 209 | xmax_ctl = InputTextCtrl(self, -1, size=(_BOX_WIDTH, 20), |
|---|
| 210 | style=wx.TE_PROCESS_ENTER) |
|---|
| 211 | ymin_ctl = InputTextCtrl(self, -1, size=(_BOX_WIDTH, 20), |
|---|
| 212 | style=wx.TE_PROCESS_ENTER) |
|---|
| 213 | ymax_ctl = InputTextCtrl(self, -1, size=(_BOX_WIDTH, 20), |
|---|
| 214 | style=wx.TE_PROCESS_ENTER) |
|---|
| 215 | z_ctl.SetValue('1.0') |
|---|
| 216 | xmin_ctl.SetValue('-0.3') |
|---|
| 217 | xmax_ctl.SetValue('0.3') |
|---|
| 218 | ymin_ctl.SetValue('-0.3') |
|---|
| 219 | ymax_ctl.SetValue('0.3') |
|---|
| 220 | z_ctl.Bind(wx.EVT_TEXT, self._on_z_enter) |
|---|
| 221 | xmin_ctl.Bind(wx.EVT_TEXT, self._onparam) |
|---|
| 222 | xmax_ctl.Bind(wx.EVT_TEXT, self._onparam) |
|---|
| 223 | ymin_ctl.Bind(wx.EVT_TEXT, self._onparam) |
|---|
| 224 | ymax_ctl.Bind(wx.EVT_TEXT, self._onparam) |
|---|
| 225 | xbox.AddMany([(x_title , 0, wx.LEFT, 0), |
|---|
| 226 | (xmin_title , 0, wx.LEFT, 10), |
|---|
| 227 | (xmin_ctl , 0, wx.LEFT, 10), |
|---|
| 228 | (xmax_title , 0, wx.LEFT, 10), |
|---|
| 229 | (xmax_ctl , 0, wx.LEFT, 10)]) |
|---|
| 230 | ybox.AddMany([(y_title , 0, wx.LEFT, 0), |
|---|
| 231 | (ymin_title , 0, wx.LEFT, 10), |
|---|
| 232 | (ymin_ctl , 0, wx.LEFT, 10), |
|---|
| 233 | (ymax_title , 0, wx.LEFT, 10), |
|---|
| 234 | (ymax_ctl , 0, wx.LEFT, 10)]) |
|---|
| 235 | zbox.AddMany([(z_title , 0, wx.LEFT, 0), |
|---|
| 236 | (ztime_title, 0, wx.LEFT, 10), |
|---|
| 237 | (z_ctl , 0, wx.LEFT, 7), |
|---|
| 238 | ]) |
|---|
| 239 | msg = "The data rescaled will show up in the Data Explorer. \n" |
|---|
| 240 | msg += "*Note: Recommend to use an image with 8 bit Grey \n" |
|---|
| 241 | msg += " scale (and with No. of pixels < 300 x 300).\n" |
|---|
| 242 | msg += " Otherwise, z = 0.299R + 0.587G + 0.114B." |
|---|
| 243 | note_txt = wx.StaticText(self, -1, msg) |
|---|
| 244 | note_txt.SetForegroundColour("black") |
|---|
| 245 | hbox = wx.BoxSizer(wx.HORIZONTAL) |
|---|
| 246 | okButton = wx.Button(self, -1, 'OK') |
|---|
| 247 | okButton.Bind(wx.EVT_BUTTON, self.on_set) |
|---|
| 248 | cancelButton = wx.Button(self, -1, 'Cancel') |
|---|
| 249 | cancelButton.Bind(wx.EVT_BUTTON, self.OnClose) |
|---|
| 250 | btnbox.Add(okButton, 0, wx.LEFT | wx.BOTTOM, 5) |
|---|
| 251 | btnbox.Add(cancelButton, 0, wx.LEFT | wx.TOP, 5) |
|---|
| 252 | hbox.Add(note_txt, 0, wx.LEFT, 5) |
|---|
| 253 | hbox.Add(btnbox, 0, wx.LEFT, 15) |
|---|
| 254 | vbox.Add((10, 15)) |
|---|
| 255 | boxsizer.Add(xbox, 1, wx.LEFT | wx.BOTTOM, 5) |
|---|
| 256 | boxsizer.Add(ybox, 1, wx.LEFT | wx.BOTTOM, 5) |
|---|
| 257 | boxsizer.Add(zbox, 1, wx.LEFT | wx.BOTTOM, 5) |
|---|
| 258 | vbox.Add(boxsizer, 0, wx.LEFT, 20) |
|---|
| 259 | vbox.Add(hbox, 0, wx.LEFT | wx.TOP, 15) |
|---|
| 260 | okButton.SetFocus() |
|---|
| 261 | # set sizer |
|---|
| 262 | self.SetSizer(vbox) |
|---|
| 263 | #pos = self.parent.GetPosition() |
|---|
| 264 | #self.SetPosition(pos) |
|---|
| 265 | self.z_ctrl = z_ctl |
|---|
| 266 | self.xy_ctrls = [[xmin_ctl, xmax_ctl], [ymin_ctl, ymax_ctl]] |
|---|
| 267 | |
|---|
| 268 | def _onparamEnter(self, event=None): |
|---|
| 269 | """ |
|---|
| 270 | By pass original txtcrl binding |
|---|
| 271 | """ |
|---|
| 272 | pass |
|---|
| 273 | |
|---|
| 274 | def _onparam(self, event=None): |
|---|
| 275 | """ |
|---|
| 276 | Set to default |
|---|
| 277 | """ |
|---|
| 278 | item = event.GetEventObject() |
|---|
| 279 | self._check_ctrls(item) |
|---|
| 280 | |
|---|
| 281 | def _check_ctrls(self, item, is_button=False): |
|---|
| 282 | """ |
|---|
| 283 | """ |
|---|
| 284 | flag = True |
|---|
| 285 | item.SetBackgroundColour("white") |
|---|
| 286 | try: |
|---|
| 287 | val = float(item.GetValue()) |
|---|
| 288 | if val < -10.0 or val > 10.0: |
|---|
| 289 | item.SetBackgroundColour("pink") |
|---|
| 290 | item.Refresh() |
|---|
| 291 | flag = False |
|---|
| 292 | except: |
|---|
| 293 | item.SetBackgroundColour("pink") |
|---|
| 294 | item.Refresh() |
|---|
| 295 | flag = False |
|---|
| 296 | if not flag and is_button: |
|---|
| 297 | err_msg = "The allowed range of the min and max values are \n" |
|---|
| 298 | err_msg += "between -10 and 10." |
|---|
| 299 | if self.base is not None: |
|---|
| 300 | wx.PostEvent(self.base, StatusEvent(status=err_msg, |
|---|
| 301 | info="error")) |
|---|
| 302 | else: |
|---|
| 303 | print err_msg |
|---|
| 304 | return flag |
|---|
| 305 | |
|---|
| 306 | def _on_z_enter(self, event=None): |
|---|
| 307 | """ |
|---|
| 308 | On z factor enter |
|---|
| 309 | """ |
|---|
| 310 | item = event.GetEventObject() |
|---|
| 311 | self._check_z_ctrl(item) |
|---|
| 312 | |
|---|
| 313 | def _check_z_ctrl(self, item, is_button=False): |
|---|
| 314 | """ |
|---|
| 315 | """ |
|---|
| 316 | flag = True |
|---|
| 317 | item.SetBackgroundColour("white") |
|---|
| 318 | try: |
|---|
| 319 | val = float(item.GetValue()) |
|---|
| 320 | if val <= 0: |
|---|
| 321 | item.SetBackgroundColour("pink") |
|---|
| 322 | item.Refresh() |
|---|
| 323 | flag = False |
|---|
| 324 | except: |
|---|
| 325 | item.SetBackgroundColour("pink") |
|---|
| 326 | item.Refresh() |
|---|
| 327 | flag = False |
|---|
| 328 | if not flag and is_button: |
|---|
| 329 | err_msg = "The z scale value should be larger than 0." |
|---|
| 330 | if self.base is not None: |
|---|
| 331 | wx.PostEvent(self.base, StatusEvent(status=err_msg, |
|---|
| 332 | info="error")) |
|---|
| 333 | else: |
|---|
| 334 | print err_msg |
|---|
| 335 | return flag |
|---|
| 336 | |
|---|
| 337 | def on_set(self, event): |
|---|
| 338 | """ |
|---|
| 339 | Set image as data |
|---|
| 340 | """ |
|---|
| 341 | event.Skip() |
|---|
| 342 | # Check the textctrl values |
|---|
| 343 | for item_list in self.xy_ctrls: |
|---|
| 344 | for item in item_list: |
|---|
| 345 | if not self._check_ctrls(item, True): |
|---|
| 346 | return |
|---|
| 347 | if not self._check_z_ctrl(self.z_ctrl, True): |
|---|
| 348 | return |
|---|
| 349 | try: |
|---|
| 350 | image = self.image |
|---|
| 351 | xmin = float(self.xy_ctrls[0][0].GetValue()) |
|---|
| 352 | xmax = float(self.xy_ctrls[0][1].GetValue()) |
|---|
| 353 | ymin = float(self.xy_ctrls[1][0].GetValue()) |
|---|
| 354 | ymax = float(self.xy_ctrls[1][1].GetValue()) |
|---|
| 355 | zscale = float(self.z_ctrl.GetValue()) |
|---|
| 356 | self.convert_image(image, xmin, xmax, ymin, ymax, zscale) |
|---|
| 357 | except: |
|---|
| 358 | err_msg = "Error occurred while converting Image to Data." |
|---|
| 359 | if self.base is not None: |
|---|
| 360 | wx.PostEvent(self.base, StatusEvent(status=err_msg, |
|---|
| 361 | info="error")) |
|---|
| 362 | else: |
|---|
| 363 | print err_msg |
|---|
| 364 | |
|---|
| 365 | self.OnClose(event) |
|---|
| 366 | |
|---|
| 367 | def convert_image(self, rgb, xmin, xmax, ymin, ymax, zscale): |
|---|
| 368 | """ |
|---|
| 369 | Convert image to data2D |
|---|
| 370 | """ |
|---|
| 371 | x_len = len(rgb[0]) |
|---|
| 372 | y_len = len(rgb) |
|---|
| 373 | x_vals = np.linspace(xmin, xmax, num=x_len) |
|---|
| 374 | y_vals = np.linspace(ymin, ymax, num=y_len) |
|---|
| 375 | # Instantiate data object |
|---|
| 376 | output = Data2D() |
|---|
| 377 | output.filename = os.path.basename(self.title) |
|---|
| 378 | output.id = output.filename |
|---|
| 379 | detector = Detector() |
|---|
| 380 | detector.pixel_size.x = None |
|---|
| 381 | detector.pixel_size.y = None |
|---|
| 382 | # Store the sample to detector distance |
|---|
| 383 | detector.distance = None |
|---|
| 384 | output.detector.append(detector) |
|---|
| 385 | # Initiazed the output data object |
|---|
| 386 | output.data = zscale * self.rgb2gray(rgb) |
|---|
| 387 | output.err_data = np.zeros([x_len, y_len]) |
|---|
| 388 | output.mask = np.ones([x_len, y_len], dtype=bool) |
|---|
| 389 | output.xbins = x_len |
|---|
| 390 | output.ybins = y_len |
|---|
| 391 | output.x_bins = x_vals |
|---|
| 392 | output.y_bins = y_vals |
|---|
| 393 | output.qx_data = np.array(x_vals) |
|---|
| 394 | output.qy_data = np.array(y_vals) |
|---|
| 395 | output.xmin = xmin |
|---|
| 396 | output.xmax = xmax |
|---|
| 397 | output.ymin = ymin |
|---|
| 398 | output.ymax = ymax |
|---|
| 399 | output.xaxis('\\rm{Q_{x}}', '\AA^{-1}') |
|---|
| 400 | output.yaxis('\\rm{Q_{y}}', '\AA^{-1}') |
|---|
| 401 | # Store loading process information |
|---|
| 402 | output.meta_data['loader'] = self.title.split('.')[-1] + "Reader" |
|---|
| 403 | output.is_data = True |
|---|
| 404 | output = reader2D_converter(output) |
|---|
| 405 | if self.base != None: |
|---|
| 406 | data = self.base.create_gui_data(output, self.title) |
|---|
| 407 | self.base.add_data({data.id:data}) |
|---|
| 408 | |
|---|
| 409 | def rgb2gray(self, rgb): |
|---|
| 410 | """ |
|---|
| 411 | RGB to Grey |
|---|
| 412 | """ |
|---|
| 413 | if self.is_png: |
|---|
| 414 | # png image limits: 0 to 1, others 0 to 255 |
|---|
| 415 | #factor = 255.0 |
|---|
| 416 | rgb = rgb[::-1] |
|---|
| 417 | if rgb.ndim == 2: |
|---|
| 418 | grey = np.rollaxis(rgb, axis=0) |
|---|
| 419 | else: |
|---|
| 420 | red, green, blue = np.rollaxis(rgb[..., :3], axis= -1) |
|---|
| 421 | grey = 0.299 * red + 0.587 * green + 0.114 * blue |
|---|
| 422 | max_i = rgb.max() |
|---|
| 423 | factor = 255.0 / max_i |
|---|
| 424 | grey *= factor |
|---|
| 425 | return np.array(grey) |
|---|
| 426 | |
|---|
| 427 | def OnClose(self, event): |
|---|
| 428 | """ |
|---|
| 429 | Close event |
|---|
| 430 | """ |
|---|
| 431 | # clear event |
|---|
| 432 | event.Skip() |
|---|
| 433 | self.Destroy() |
|---|
| 434 | |
|---|
| 435 | if __name__ == "__main__": |
|---|
| 436 | app = wx.App() |
|---|
| 437 | ImageView(None).load() |
|---|
| 438 | app.MainLoop() |
|---|
