# Sound Functions def increaseVolume(sound): for s in getSamples(sound): value = getSampleValue(s) setSampleValue(s, 2 * value) def maximize(sound): for s in getSamples(sound): value = getSampleValue(s) if value >= 0: setSampleValue(s,32768) if value < 0: setSampleValue(s,-32767) def makeSplice(sound1,sound2): newSound = makeEmptySound(getLength(sound1)+getLength(sound2)) index = 0 for s in getSamples(sound1): setSampleValueAt(newSound,index,getSampleValue(s)) index = index + 1 for s in getSamples(sound2): setSampleValueAt(newSound,index,getSampleValue(s)) index = index + 1 return newSound def makeMix(sound1,sound2,mixValue1=0.50,mixValue2=0.50): newLength = min(getLength(sound1),getLength(sound2)) newSound = makeEmptySound(newLength) index = 0 for index in range(0,newLength): sample1 = getSampleValueAt(sound1,index) sample2 = getSampleValueAt(sound2,index) newSample = mixValue1*sample1 + mixValue2*sample2 setSampleValueAt(newSound,index,newSample) return newSound def makeSilence(length): return makeEmptySound(length) def makeEcho(sound,spacing=10000,repeat=5): newSound = makeEmptySound(getLength(sound)+spacing*repeat) #Put the initial sound in index = 0 for s in getSamples(sound): setSampleValueAt(newSound,index,getSampleValue(s)) index = index + 1 #Now put the echoes in for echoes in range(1,repeat): echoSound = makeEmptySound(getLength(sound)+spacing*repeat) index = echoes * spacing for s in getSamples(sound): setSampleValueAt(echoSound,index,getSampleValue(s)) index = index + 1 newSound = makeMix(newSound,echoSound,0.9,0.1) return newSound def makePartSound(sound,start,finish): newSound = makeEmptySound(finish+start) index = 0 for src in range(start,finish): value = getSampleValueAt(sound,src) setSampleValueAt(newSound,index,value) index = index + 1 return newSound def makeScaleSound(sound,factor): newLength = int(getLength(sound)*factor) newSound = makeEmptySound(newLength) src = 0 for index in range(0,newLength): value = getSampleValueAt(sound,int(src)) setSampleValueAt(newSound,index,value) src = src + 1.0/factor return(newSound) # Image Functions def decreaseRed(picture): for p in getPixels(picture): value=getRed(p) setRed(p,value*0.5) def decreaseBlue(picture): for p in getPixels(picture): value=getBlue(p) setBlue(p,value*0.7) def decreaseGreen(picture): for p in getPixels(picture): value=getGreen(p) setGreen(p,value*0.7) def clearRed(picture): for p in getPixels(picture): setRed(p,0) def maxBlue(picture): for p in getPixels(picture): setBlue(p,255) def copyPicture(picture): returnPicture = makeEmptyPicture(getWidth(picture),getHeight(picture)) for pixel in getPixels(picture): color = getColor(pixel) setColor(getPixel(returnPicture,getX(pixel),getY(pixel)),returnPicture) return returnPicture def copyPartPicture(picture,x1,y1,x2,y2): returnPicture = makeEmptyPicture(x2-x1,y2-y1) targetx = 0 for srcx in range(x1,x2): targety = 0 for srcy in range(y1,y2): srcpixel = getPixel(picture,srcx,srcy) targetPixel = getPixel(returnPicture,targetx,targety) setColor(targetPixel,getColor(srcpixel)) targety = targety + 1 targetx = targetx + 1 return returnPicture def pastePicture(canvas,source,startx,starty): targetx = startx for x in range(0,getWidth(source)): targety = starty for y in range(0,getHeight(source)): srcpixel = getPixel(source,x,y) if (targetx < getWidth(canvas)) and (targety < getHeight(canvas)): targetPixel = getPixel(canvas,targetx,targety) setColor(targetPixel,getColor(srcpixel)) targety = targety + 1 targetx = targetx + 1 def resizeWidth(picture,newWidth): return scale(picture,float(newWidth)/getWidth(picture)) def resizeHeight(picture,newHeight): return scale(picture,float(newHeight)/getHeight(picture)) def scale(picture,factor): newHeight = int(factor*getHeight(picture))+1 newWidth = int(factor*getWidth(picture))+1 returnPic = makeEmptyPicture(int(newWidth),int(newHeight)) sx = 0 for tx in range(0,newWidth): sy = 0 for ty in range(0,newHeight): if (int(sx) < getWidth(picture)) and (int(sy) < getHeight(picture)): sp = getPixel(picture,int(sx),int(sy)) tp = getPixel(returnPic,tx,ty) setColor(tp,getColor(sp)) sy = sy + (1/factor) sx = sx + (1/factor) return returnPic def negative(picture): for p in getPixels(picture): r = getRed(p) b = getBlue(p) g = getGreen(p) color = makeColor(255-r, 255-g, 255-b) setColor(p,color) def grayscale(picture): for p in getPixels(picture): r = getRed(p) b = getBlue(p) g = getGreen(p) brightness = (r+g+b)/3 color = makeColor(brightness,brightness,brightness) setColor(p,color) def changeAllShirt(picture): myGreen = makeColor(132,240,204) for pixel in getPixels(picture): color = getColor(pixel) if distance(color,myGreen) < 100: setColor(pixel,pink) def changeShirt(picture): myGreen = makeColor(132,240,204) for x in range(220,400): for y in range(210,480): pixel = getPixel(picture,x,y) color = getColor(pixel) if distance(color,myGreen) < 50: setColor(pixel,pink) def newBackgroundShirt(picture,background): myGreen = makeColor(132,240,204) for x in range(220,400): for y in range(210,480): pixel = getPixel(picture,x,y) color = getColor(pixel) if distance(color,myGreen) < 100: backgroundPixel = getPixel(background,x,y) backgroundColor = getColor(backgroundPixel) setColor(pixel,backgroundColor) def chromakey(picture,background,color,threshold=100.0): for pixel in getPixels(picture): pixelColor = getColor(pixel) if distance(color,pixelColor) < threshold: newColor = getColor(getPixel(background,getX(pixel),getY(pixel))) setColor(pixel,newColor) def chromakeyBlue(picture,background): for pixel in getPixels(picture): pixelColor = getColor(pixel) if getRed(pixel)