{ "cells": [ { "cell_type": "markdown", "metadata": {}, "source": [ "## Imports" ] }, { "cell_type": "code", "execution_count": 1, "metadata": {}, "outputs": [], "source": [ "# Programme pour générer des fragments à partir d'une fresque. \n", "\n", "import cv2\n", "import numpy as np\n", "import pathlib\n", "from random import randint\n", "from IPython.display import display, clear_output\n", "import matplotlib\n", "%matplotlib notebook\n", "from matplotlib import pyplot as plt" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "## Fonctions" ] }, { "cell_type": "code", "execution_count": 2, "metadata": {}, "outputs": [], "source": [ "def select_pos(taille_fresque):\n", " return([randint(0,taille_fresque[0]-max_height), randint(0,taille_fresque[1]-max_width)])\n", "\n", "def decoupe(start,stop,bornes):\n", " keep = True\n", " res = [0]\n", " while(res[-1]+bornes[1]2*bornes[0]):\n", " res.append(int((res[-1]+stop)/2))\n", " \n", " res.append(stop)\n", " return res\n", "\n", "def mod_shift_colors(frag):\n", " \"\"\"Shift the color of the img within [-alpha,+alpha],\n", " clip the color at the end (0-255).\n", " \"\"\"\n", " \n", " frag = frag.astype('int16')\n", " for i in range(3):\n", " frag[:,:,i] = frag[:,:,i] + randint(-alpha,alpha)\n", " \n", " np.clip(frag,0,255,out=frag)\n", " \n", " return(frag)\n", " \n", " \n", " \n", "def gen_frags_random(modifier):\n", " \"\"\" Function for generating the fragments to be a randomly scattered on the fresque.\n", " The modifier argument is a function that take a fragment as input, modify it, \n", " and return a fragment (of the same size and placement). If no modifications\n", " are requiered, the modifier is None.\n", " \"\"\"\n", " for fresque_id in range(N_fresques):\n", " \n", " # Création des dossiers\n", " pathlib.Path(deep_folder_filename.format(fresque_id)).mkdir(parents=True, exist_ok=True)\n", " \n", " \n", " fresque = cv2.imread(fresque_filename.format(fresque_id))\n", " #cv2.resize(fresque,(1240,900),interpolation=cv2.INTER_CUBIC)\n", " taille = fresque.shape\n", "\n", " ## GENERATING DEV\n", " label = 'dev'\n", " for i in range(N_dev):\n", " clear_output(wait=True)\n", " print(\"Fresque {}, fragment {}/{}, {:.3}%\".format(fresque_id,i,N_dev,i/(N_dev)*100))\n", "\n", " # Selection de la position\n", " pos = select_pos(taille)\n", " if v:print(\"position: {}\".format(pos))\n", "\n", " # Selection de la taille\n", " height,width = frag_size,frag_size\n", " if v:print(\"taille: {}\".format((height,width)))\n", "\n", " # Selectionne le fragment\n", " frag = fresque[pos[0]:pos[0]+height,pos[1]:pos[1]+width]\n", " \n", " if modifier != None:\n", " frag = modifier(frag)\n", "\n", " # Ecriture du frag\n", " if commit:\n", " cv2.imwrite(fragment_filename.format(fresque_id,label,i),frag)\n", "\n", " # Ecriture de la verité terrain\n", " with open(vt_filename.format(fresque_id,label,i),'w+') as f:\n", " f.write(\"{}\\n{}\\n{}\\n{}\\n\".format(int(taille[0]),\n", " int(taille[1]),\n", " int((pos[0]+height/2)),\n", " int((pos[1]+width/2))))\n", "\n", " f.close()\n", "\n", " if v:\n", " print(\"{}\\n{}\\n{}\\n{}\\n\".format(int(taille[0]),\n", " int(taille[1]),\n", " int((pos[0]+height/2)),\n", " int((pos[1]+width/2))))\n", " \n", " ## GENERATING BENCH\n", " label = 'bench'\n", " for i in range(N_bench):\n", " clear_output(wait=True)\n", " print(\"Fresque {}, fragment {}/{}, {:.3}%\".format(fresque_id,i,N_bench,i/(N_bench)*100))\n", " \n", " # Selection de la position\n", " pos = select_pos(taille)\n", " if v:print(\"position: {}\".format(pos))\n", " \n", " # Selection de la taille\n", " height = randint(min_height,max_height)\n", " width = randint(min_width,max_width)\n", " if v:print(\"taille: {}\".format((height,width)))\n", " \n", " # Selectionne le fragment\n", " frag = fresque[pos[0]:pos[0]+height,pos[1]:pos[1]+width]\n", " \n", " if modifier != None:\n", " frag = modifier(frag)\n", "\n", " if commit:\n", " # Ecriture du frag\n", " cv2.imwrite(fragment_filename.format(fresque_id,label,i),frag)\n", "\n", " # Ecriture de la verité terrain\n", " with open(vt_filename.format(fresque_id,label,i),'w+') as f:\n", " f.write(\"{}\\n{}\\n{}\\n{}\\n\".format(int(taille[0]),\n", " int(taille[1]),\n", " int((pos[0]+height/2)),\n", " int((pos[1]+width/2))))\n", " f.close()\n", "\n", " if v:\n", " print(\"{}\\n{}\\n{}\\n{}\\n\".format(int(taille[0]),\n", " int(taille[1]),\n", " int((pos[0]+height/2)),\n", " int((pos[1]+width/2))))\n", "\n", " \n", "def gen_frags_complet(modifier):\n", " \"\"\" Function for generating the fragments to be a complet pavement of the fresque.\n", " The modifier argument is a function that take a fragment as input, modify it, \n", " and return a fragment (of the same size and placement). If no modifications\n", " are requiered, the modifier is None.\n", " \"\"\"\n", " for fresque_id in range(N_fresques):\n", " # Création des dossiers\n", " pathlib.Path(deep_folder_filename.format(fresque_id)).mkdir(parents=True, exist_ok=True)\n", "\n", " fresque = cv2.imread(fresque_filename.format(fresque_id))\n", " #cv2.resize(fresque,(1240,900),interpolation=cv2.INTER_CUBIC)\n", " taille = fresque.shape\n", "\n", " hs = decoupe(0,taille[0],(10,100))\n", " ws = decoupe(0,taille[1],(10,100))\n", "\n", " frag_count = 0 \n", " for i in range(len(hs)-1):\n", " for j in range(len(ws)-1):\n", "\n", " clear_output(wait=True)\n", " print(\"Fresque {}, fragment {}/{}, {:.3}%\".format(fresque_id,frag_count,len(hs)*len(ws),frag_count/(len(hs)*len(ws))*100))\n", " frag = fresque[hs[i]:hs[i+1],ws[j]:ws[j+1],:]\n", " \n", " if modifier != None:\n", " frag = modifier(frag)\n", "\n", " cv2.imwrite(fragment_filename.format(fresque_id,'bench',frag_count),frag)\n", "\n", " with open(vt_filename.format(fresque_id,'bench',frag_count),'w+') as f:\n", " f.write(\"{}\\n{}\\n{}\\n{}\\n\".format(int(taille[0]),\n", " int(taille[1]),\n", " int(hs[i]+(hs[i+1]-hs[i])/2),\n", " int(ws[j]+(ws[j+1]-ws[j])/2)))\n", " f.close()\n", "\n", " frag_count+=1" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "## Variables" ] }, { "cell_type": "code", "execution_count": 4, "metadata": {}, "outputs": [], "source": [ "base_dir = './training_data_shift_color_16/'\n", "fresque_filename = base_dir+'fresque{}.ppm'\n", "fresque_filename_wild = base_dir+'fresque*.ppm'\n", "fragment_filename = base_dir+'fragments/fresque{}/frag_{}_{:05}.ppm'\n", "fragments_filename_wild = base_dir+'fragments/fresque{}/frag_{}_*.ppm'\n", "vt_filename = base_dir+'fragments/fresque{}/vt/frag_{}_{:05}_vt.txt'\n", "deep_folder_filename = base_dir+'fragments/fresque{}/vt/'\n", "\n", "v = True # Verbose\n", "commit = True\n", " \n", "# Nombre de fresques\n", "N_fresques = 6\n", "\n", "# Taille des fragments de bench\n", "min_height, max_height = 16,100\n", "min_width, max_width = 16,100\n", "\n", "# Taille des fragments de test\n", "frag_size = 16\n", "\n", "# Nombre de fragments\n", "N_bench = 200\n", "N_dev = 3000\n", "\n", "alpha = 30 # Range pour le shift de couleur" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "## Main" ] }, { "cell_type": "code", "execution_count": 5, "metadata": {}, "outputs": [ { "name": "stdout", "output_type": "stream", "text": [ "Fresque 5, fragment 199/200, 99.5%\n", "position: [573, 227]\n", "taille: (91, 90)\n", "1000\n", "1000\n", "618\n", "272\n", "\n" ] } ], "source": [ "gen_frags_random(mod_shift_colors)" ] }, { "cell_type": "code", "execution_count": null, "metadata": {}, "outputs": [], "source": [ "## Script annexes" ] }, { "cell_type": "code", "execution_count": 116, "metadata": {}, "outputs": [ { "data": { "application/javascript": [ "/* Put everything inside the global mpl namespace */\n", "window.mpl = {};\n", "\n", "\n", "mpl.get_websocket_type = function() {\n", " if (typeof(WebSocket) !== 'undefined') {\n", " return WebSocket;\n", " } else if (typeof(MozWebSocket) !== 'undefined') {\n", " return MozWebSocket;\n", " } else {\n", " alert('Your browser does not have WebSocket support. ' +\n", " 'Please try Chrome, Safari or Firefox ≥ 6. ' +\n", " 'Firefox 4 and 5 are also supported but you ' +\n", " 'have to enable WebSockets in about:config.');\n", " };\n", "}\n", "\n", "mpl.figure = function(figure_id, websocket, ondownload, parent_element) {\n", " this.id = figure_id;\n", "\n", " this.ws = websocket;\n", "\n", " this.supports_binary = (this.ws.binaryType != undefined);\n", "\n", " if (!this.supports_binary) {\n", " var warnings = document.getElementById(\"mpl-warnings\");\n", " if (warnings) {\n", " warnings.style.display = 'block';\n", " warnings.textContent = (\n", " \"This browser does not support binary websocket messages. \" +\n", " \"Performance may be slow.\");\n", " }\n", " }\n", "\n", " this.imageObj = new Image();\n", "\n", " this.context = undefined;\n", " this.message = undefined;\n", " this.canvas = undefined;\n", " this.rubberband_canvas = undefined;\n", " this.rubberband_context = undefined;\n", " this.format_dropdown = undefined;\n", "\n", " this.image_mode = 'full';\n", "\n", " this.root = $('
');\n", " this._root_extra_style(this.root)\n", " this.root.attr('style', 'display: inline-block');\n", "\n", " $(parent_element).append(this.root);\n", "\n", " this._init_header(this);\n", " this._init_canvas(this);\n", " this._init_toolbar(this);\n", "\n", " var fig = this;\n", "\n", " this.waiting = false;\n", "\n", " this.ws.onopen = function () {\n", " fig.send_message(\"supports_binary\", {value: fig.supports_binary});\n", " fig.send_message(\"send_image_mode\", {});\n", " if (mpl.ratio != 1) {\n", " fig.send_message(\"set_dpi_ratio\", {'dpi_ratio': mpl.ratio});\n", " }\n", " fig.send_message(\"refresh\", {});\n", " }\n", "\n", " this.imageObj.onload = function() {\n", " if (fig.image_mode == 'full') {\n", " // Full images could contain transparency (where diff images\n", " // almost always do), so we need to clear the canvas so that\n", " // there is no ghosting.\n", " fig.context.clearRect(0, 0, fig.canvas.width, fig.canvas.height);\n", " }\n", " fig.context.drawImage(fig.imageObj, 0, 0);\n", " };\n", "\n", " this.imageObj.onunload = function() {\n", " fig.ws.close();\n", " }\n", "\n", " this.ws.onmessage = this._make_on_message_function(this);\n", "\n", " this.ondownload = ondownload;\n", "}\n", "\n", "mpl.figure.prototype._init_header = function() {\n", " var titlebar = $(\n", " '
');\n", " var titletext = $(\n", " '
');\n", " titlebar.append(titletext)\n", " this.root.append(titlebar);\n", " this.header = titletext[0];\n", "}\n", "\n", "\n", "\n", "mpl.figure.prototype._canvas_extra_style = function(canvas_div) {\n", "\n", "}\n", "\n", "\n", "mpl.figure.prototype._root_extra_style = function(canvas_div) {\n", "\n", "}\n", "\n", "mpl.figure.prototype._init_canvas = function() {\n", " var fig = this;\n", "\n", " var canvas_div = $('
');\n", "\n", " canvas_div.attr('style', 'position: relative; clear: both; outline: 0');\n", "\n", " function canvas_keyboard_event(event) {\n", " return fig.key_event(event, event['data']);\n", " }\n", "\n", " canvas_div.keydown('key_press', canvas_keyboard_event);\n", " canvas_div.keyup('key_release', canvas_keyboard_event);\n", " this.canvas_div = canvas_div\n", " this._canvas_extra_style(canvas_div)\n", " this.root.append(canvas_div);\n", "\n", " var canvas = $('');\n", " canvas.addClass('mpl-canvas');\n", " canvas.attr('style', \"left: 0; top: 0; z-index: 0; outline: 0\")\n", "\n", " this.canvas = canvas[0];\n", " this.context = canvas[0].getContext(\"2d\");\n", "\n", " var backingStore = this.context.backingStorePixelRatio ||\n", "\tthis.context.webkitBackingStorePixelRatio ||\n", "\tthis.context.mozBackingStorePixelRatio ||\n", "\tthis.context.msBackingStorePixelRatio ||\n", "\tthis.context.oBackingStorePixelRatio ||\n", "\tthis.context.backingStorePixelRatio || 1;\n", "\n", " mpl.ratio = (window.devicePixelRatio || 1) / backingStore;\n", "\n", " var rubberband = $('');\n", " rubberband.attr('style', \"position: absolute; left: 0; top: 0; z-index: 1;\")\n", "\n", " var pass_mouse_events = true;\n", "\n", " canvas_div.resizable({\n", " start: function(event, ui) {\n", " pass_mouse_events = false;\n", " },\n", " resize: function(event, ui) {\n", " fig.request_resize(ui.size.width, ui.size.height);\n", " },\n", " stop: function(event, ui) {\n", " pass_mouse_events = true;\n", " fig.request_resize(ui.size.width, ui.size.height);\n", " },\n", " });\n", "\n", " function mouse_event_fn(event) {\n", " if (pass_mouse_events)\n", " return fig.mouse_event(event, event['data']);\n", " }\n", "\n", " rubberband.mousedown('button_press', mouse_event_fn);\n", " rubberband.mouseup('button_release', mouse_event_fn);\n", " // Throttle sequential mouse events to 1 every 20ms.\n", " rubberband.mousemove('motion_notify', mouse_event_fn);\n", "\n", " rubberband.mouseenter('figure_enter', mouse_event_fn);\n", " rubberband.mouseleave('figure_leave', mouse_event_fn);\n", "\n", " canvas_div.on(\"wheel\", function (event) {\n", " event = event.originalEvent;\n", " event['data'] = 'scroll'\n", " if (event.deltaY < 0) {\n", " event.step = 1;\n", " } else {\n", " event.step = -1;\n", " }\n", " mouse_event_fn(event);\n", " });\n", "\n", " canvas_div.append(canvas);\n", " canvas_div.append(rubberband);\n", "\n", " this.rubberband = rubberband;\n", " this.rubberband_canvas = rubberband[0];\n", " this.rubberband_context = rubberband[0].getContext(\"2d\");\n", " this.rubberband_context.strokeStyle = \"#000000\";\n", "\n", " this._resize_canvas = function(width, height) {\n", " // Keep the size of the canvas, canvas container, and rubber band\n", " // canvas in synch.\n", " canvas_div.css('width', width)\n", " canvas_div.css('height', height)\n", "\n", " canvas.attr('width', width * mpl.ratio);\n", " canvas.attr('height', height * mpl.ratio);\n", " canvas.attr('style', 'width: ' + width + 'px; height: ' + height + 'px;');\n", "\n", " rubberband.attr('width', width);\n", " rubberband.attr('height', height);\n", " }\n", "\n", " // Set the figure to an initial 600x600px, this will subsequently be updated\n", " // upon first draw.\n", " this._resize_canvas(600, 600);\n", "\n", " // Disable right mouse context menu.\n", " $(this.rubberband_canvas).bind(\"contextmenu\",function(e){\n", " return false;\n", " });\n", "\n", " function set_focus () {\n", " canvas.focus();\n", " canvas_div.focus();\n", " }\n", "\n", " window.setTimeout(set_focus, 100);\n", "}\n", "\n", "mpl.figure.prototype._init_toolbar = function() {\n", " var fig = this;\n", "\n", " var nav_element = $('
');\n", " nav_element.attr('style', 'width: 100%');\n", " this.root.append(nav_element);\n", "\n", " // Define a callback function for later on.\n", " function toolbar_event(event) {\n", " return fig.toolbar_button_onclick(event['data']);\n", " }\n", " function toolbar_mouse_event(event) {\n", " return fig.toolbar_button_onmouseover(event['data']);\n", " }\n", "\n", " for(var toolbar_ind in mpl.toolbar_items) {\n", " var name = mpl.toolbar_items[toolbar_ind][0];\n", " var tooltip = mpl.toolbar_items[toolbar_ind][1];\n", " var image = mpl.toolbar_items[toolbar_ind][2];\n", " var method_name = mpl.toolbar_items[toolbar_ind][3];\n", "\n", " if (!name) {\n", " // put a spacer in here.\n", " continue;\n", " }\n", " var button = $('