# HG changeset patch
# User Xavier Glorot <glorotxa@iro.umontreal.ca>
# Date 1265603345 18000
# Node ID 6846136b2201349e45b5e7eed8d2375d552ad203
# Parent  d9d836d3c6256c0ff4fbf07d330590148557dede
Add a simple test script to see transformation step by step

diff -r d9d836d3c625 -r 6846136b2201 transformations/testtransformations.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/transformations/testtransformations.py	Sun Feb 07 23:29:05 2010 -0500
@@ -0,0 +1,85 @@
+#!/usr/bin/env python
+
+
+from pylearn.io import filetensor as ft
+import copy
+import pygame
+import time
+import numpy as N
+
+#from gimpfu import *
+
+
+from PoivreSel import PoivreSel
+from thick import Thick
+from BruitGauss import BruitGauss
+from DistorsionGauss import DistorsionGauss
+from PermutPixel import PermutPixel
+#from gimp_script import GIMPTransformation
+from Rature import Rature
+from contrast import Contrast
+from local_elastic_distortions import LocalElasticDistorter
+from slant import Slant
+#from Occlusion import Occlusion
+from add_background_image import AddBackground
+from affine_transform import AffineTransformation
+
+###---------------------order of transformation module
+MODULE_INSTANCES = [Thick(),Slant(),AffineTransformation(), LocalElasticDistorter(), PermutPixel(), Rature(), BruitGauss(),PoivreSel(), Contrast()]
+
+###---------------------complexity associated to each of them
+complexity = [0.6,0.7,0.5,0.4,0.1,0.5,0.03,0.03,0.5]
+
+
+nbmodule = len(MODULE_INSTANCES)
+
+datapath = '/data/lisa/data/nist/by_class/'
+f = open(datapath+'lower/lower_train_data.ft')
+d = ft.read(f)
+
+d = d[0:1000,:]/255.0
+
+pygame.surfarray.use_arraytype('numpy')
+
+pygame.display.init()
+screen = pygame.display.set_mode((4*(nbmodule+1)*32,4*32+20),0,8)
+anglcolorpalette=[(x,x,x) for x in xrange(0,256)]
+screen.set_palette(anglcolorpalette)
+
+pygame.font.init()
+
+for i in range(10000):
+    a=d[i,:]
+    b=N.asarray(N.reshape(a,(32,32)))
+    c=N.asarray(N.reshape(a*255.0,(32,32))).T
+    new=pygame.surfarray.make_surface(c)
+    new=pygame.transform.scale2x(new)
+    new=pygame.transform.scale2x(new)
+    new.set_palette(anglcolorpalette)
+    screen.blit(new,(0,0))
+    
+    offset = 4*32
+    ct = 0
+    for j in MODULE_INSTANCES:
+        #max dilation
+             
+        #random
+        print j.get_settings_names(), j.regenerate_parameters(complexity[ct])
+
+        b=j.transform_image(b)
+        c=N.asarray(b*255).T
+        
+        new=pygame.surfarray.make_surface(c)
+        new=pygame.transform.scale2x(new)
+        new=pygame.transform.scale2x(new)
+        new.set_palette(anglcolorpalette)
+        screen.blit(new,(offset,0))
+        font = pygame.font.SysFont('liberationserif',18)
+        text = font.render(j.__module__,0,(255,255,255),(0,0,0))
+        screen.blit(text,(offset,4*32))
+        offset += 4*32
+        ct+=1
+    pygame.display.update()
+    raw_input('Press Enter')
+
+pygame.display.quit()