From 1be5933ba21a3badec42b7b2753d626f849b609d Mon Sep 17 00:00:00 2001 From: captin411 Date: Sun, 23 Oct 2022 04:11:07 -0700 Subject: [PATCH] auto cropping now works with non square crops --- modules/textual_inversion/autocrop.py | 509 ++++++++++++++------------ 1 file changed, 269 insertions(+), 240 deletions(-) diff --git a/modules/textual_inversion/autocrop.py b/modules/textual_inversion/autocrop.py index 5a551c253..b2f9241c4 100644 --- a/modules/textual_inversion/autocrop.py +++ b/modules/textual_inversion/autocrop.py @@ -1,241 +1,270 @@ -import cv2 -from collections import defaultdict -from math import log, sqrt -import numpy as np -from PIL import Image, ImageDraw - -GREEN = "#0F0" -BLUE = "#00F" -RED = "#F00" - - -def crop_image(im, settings): - """ Intelligently crop an image to the subject matter """ - if im.height > im.width: - im = im.resize((settings.crop_width, settings.crop_height * im.height // im.width)) - elif im.width > im.height: - im = im.resize((settings.crop_width * im.width // im.height, settings.crop_height)) - else: - im = im.resize((settings.crop_width, settings.crop_height)) - - if im.height == im.width: - return im - - focus = focal_point(im, settings) - - # take the focal point and turn it into crop coordinates that try to center over the focal - # point but then get adjusted back into the frame - y_half = int(settings.crop_height / 2) - x_half = int(settings.crop_width / 2) - - x1 = focus.x - x_half - if x1 < 0: - x1 = 0 - elif x1 + settings.crop_width > im.width: - x1 = im.width - settings.crop_width - - y1 = focus.y - y_half - if y1 < 0: - y1 = 0 - elif y1 + settings.crop_height > im.height: - y1 = im.height - settings.crop_height - - x2 = x1 + settings.crop_width - y2 = y1 + settings.crop_height - - crop = [x1, y1, x2, y2] - - if settings.annotate_image: - d = ImageDraw.Draw(im) - rect = list(crop) - rect[2] -= 1 - rect[3] -= 1 - d.rectangle(rect, outline=GREEN) - if settings.destop_view_image: - im.show() - - return im.crop(tuple(crop)) - -def focal_point(im, settings): - corner_points = image_corner_points(im, settings) - entropy_points = image_entropy_points(im, settings) - face_points = image_face_points(im, settings) - - total_points = len(corner_points) + len(entropy_points) + len(face_points) - - corner_weight = settings.corner_points_weight - entropy_weight = settings.entropy_points_weight - face_weight = settings.face_points_weight - - weight_pref_total = corner_weight + entropy_weight + face_weight - - # weight things - pois = [] - if weight_pref_total == 0 or total_points == 0: - return pois - - pois.extend( - [ PointOfInterest( p.x, p.y, weight=p.weight * ( (corner_weight/weight_pref_total) / (len(corner_points)/total_points) )) for p in corner_points ] - ) - pois.extend( - [ PointOfInterest( p.x, p.y, weight=p.weight * ( (entropy_weight/weight_pref_total) / (len(entropy_points)/total_points) )) for p in entropy_points ] - ) - pois.extend( - [ PointOfInterest( p.x, p.y, weight=p.weight * ( (face_weight/weight_pref_total) / (len(face_points)/total_points) )) for p in face_points ] - ) - - average_point = poi_average(pois, settings) - - if settings.annotate_image: - d = ImageDraw.Draw(im) - for f in face_points: - d.rectangle(f.bounding(f.size), outline=RED) - for f in entropy_points: - d.rectangle(f.bounding(30), outline=BLUE) - for poi in pois: - w = max(4, 4 * 0.5 * sqrt(poi.weight)) - d.ellipse(poi.bounding(w), fill=BLUE) - d.ellipse(average_point.bounding(25), outline=GREEN) - - return average_point - - -def image_face_points(im, settings): - np_im = np.array(im) - gray = cv2.cvtColor(np_im, cv2.COLOR_BGR2GRAY) - - tries = [ - [ f'{cv2.data.haarcascades}haarcascade_eye.xml', 0.01 ], - [ f'{cv2.data.haarcascades}haarcascade_frontalface_default.xml', 0.05 ], - [ f'{cv2.data.haarcascades}haarcascade_profileface.xml', 0.05 ], - [ f'{cv2.data.haarcascades}haarcascade_frontalface_alt.xml', 0.05 ], - [ f'{cv2.data.haarcascades}haarcascade_frontalface_alt2.xml', 0.05 ], - [ f'{cv2.data.haarcascades}haarcascade_frontalface_alt_tree.xml', 0.05 ], - [ f'{cv2.data.haarcascades}haarcascade_eye_tree_eyeglasses.xml', 0.05 ], - [ f'{cv2.data.haarcascades}haarcascade_upperbody.xml', 0.05 ] - ] - - for t in tries: - # print(t[0]) - classifier = cv2.CascadeClassifier(t[0]) - minsize = int(min(im.width, im.height) * t[1]) # at least N percent of the smallest side - try: - faces = classifier.detectMultiScale(gray, scaleFactor=1.1, - minNeighbors=7, minSize=(minsize, minsize), flags=cv2.CASCADE_SCALE_IMAGE) - except: - continue - - if len(faces) > 0: - rects = [[f[0], f[1], f[0] + f[2], f[1] + f[3]] for f in faces] - return [PointOfInterest((r[0] +r[2]) // 2, (r[1] + r[3]) // 2, size=abs(r[0]-r[2])) for r in rects] - return [] - - -def image_corner_points(im, settings): - grayscale = im.convert("L") - - # naive attempt at preventing focal points from collecting at watermarks near the bottom - gd = ImageDraw.Draw(grayscale) - gd.rectangle([0, im.height*.9, im.width, im.height], fill="#999") - - np_im = np.array(grayscale) - - points = cv2.goodFeaturesToTrack( - np_im, - maxCorners=100, - qualityLevel=0.04, - minDistance=min(grayscale.width, grayscale.height)*0.07, - useHarrisDetector=False, - ) - - if points is None: - return [] - - focal_points = [] - for point in points: - x, y = point.ravel() - focal_points.append(PointOfInterest(x, y, size=4)) - - return focal_points - - -def image_entropy_points(im, settings): - landscape = im.height < im.width - portrait = im.height > im.width - if landscape: - move_idx = [0, 2] - move_max = im.size[0] - elif portrait: - move_idx = [1, 3] - move_max = im.size[1] - else: - return [] - - e_max = 0 - crop_current = [0, 0, settings.crop_width, settings.crop_height] - crop_best = crop_current - while crop_current[move_idx[1]] < move_max: - crop = im.crop(tuple(crop_current)) - e = image_entropy(crop) - - if (e > e_max): - e_max = e - crop_best = list(crop_current) - - crop_current[move_idx[0]] += 4 - crop_current[move_idx[1]] += 4 - - x_mid = int(crop_best[0] + settings.crop_width/2) - y_mid = int(crop_best[1] + settings.crop_height/2) - - return [PointOfInterest(x_mid, y_mid, size=25)] - - -def image_entropy(im): - # greyscale image entropy - # band = np.asarray(im.convert("L")) - band = np.asarray(im.convert("1"), dtype=np.uint8) - hist, _ = np.histogram(band, bins=range(0, 256)) - hist = hist[hist > 0] - return -np.log2(hist / hist.sum()).sum() - - -def poi_average(pois, settings): - weight = 0.0 - x = 0.0 - y = 0.0 - for poi in pois: - weight += poi.weight - x += poi.x * poi.weight - y += poi.y * poi.weight - avg_x = round(x / weight) - avg_y = round(y / weight) - - return PointOfInterest(avg_x, avg_y) - - -class PointOfInterest: - def __init__(self, x, y, weight=1.0, size=10): - self.x = x - self.y = y - self.weight = weight - self.size = size - - def bounding(self, size): - return [ - self.x - size//2, - self.y - size//2, - self.x + size//2, - self.y + size//2 - ] - - -class Settings: - def __init__(self, crop_width=512, crop_height=512, corner_points_weight=0.5, entropy_points_weight=0.5, face_points_weight=0.5, annotate_image=False): - self.crop_width = crop_width - self.crop_height = crop_height - self.corner_points_weight = corner_points_weight - self.entropy_points_weight = entropy_points_weight - self.face_points_weight = entropy_points_weight - self.annotate_image = annotate_image +import cv2 +from collections import defaultdict +from math import log, sqrt +import numpy as np +from PIL import Image, ImageDraw + +GREEN = "#0F0" +BLUE = "#00F" +RED = "#F00" + + +def crop_image(im, settings): + """ Intelligently crop an image to the subject matter """ + + scale_by = 1 + if is_landscape(im.width, im.height): + scale_by = settings.crop_height / im.height + elif is_portrait(im.width, im.height): + scale_by = settings.crop_width / im.width + elif is_square(im.width, im.height): + if is_square(settings.crop_width, settings.crop_height): + scale_by = settings.crop_width / im.width + elif is_landscape(settings.crop_width, settings.crop_height): + scale_by = settings.crop_width / im.width + elif is_portrait(settings.crop_width, settings.crop_height): + scale_by = settings.crop_height / im.height + + im = im.resize((int(im.width * scale_by), int(im.height * scale_by))) + + if im.width == settings.crop_width and im.height == settings.crop_height: + if settings.annotate_image: + d = ImageDraw.Draw(im) + rect = [0, 0, im.width, im.height] + rect[2] -= 1 + rect[3] -= 1 + d.rectangle(rect, outline=GREEN) + if settings.destop_view_image: + im.show() + return im + + focus = focal_point(im, settings) + + # take the focal point and turn it into crop coordinates that try to center over the focal + # point but then get adjusted back into the frame + y_half = int(settings.crop_height / 2) + x_half = int(settings.crop_width / 2) + + x1 = focus.x - x_half + if x1 < 0: + x1 = 0 + elif x1 + settings.crop_width > im.width: + x1 = im.width - settings.crop_width + + y1 = focus.y - y_half + if y1 < 0: + y1 = 0 + elif y1 + settings.crop_height > im.height: + y1 = im.height - settings.crop_height + + x2 = x1 + settings.crop_width + y2 = y1 + settings.crop_height + + crop = [x1, y1, x2, y2] + + if settings.annotate_image: + d = ImageDraw.Draw(im) + rect = list(crop) + rect[2] -= 1 + rect[3] -= 1 + d.rectangle(rect, outline=GREEN) + if settings.destop_view_image: + im.show() + + return im.crop(tuple(crop)) + +def focal_point(im, settings): + corner_points = image_corner_points(im, settings) + entropy_points = image_entropy_points(im, settings) + face_points = image_face_points(im, settings) + + total_points = len(corner_points) + len(entropy_points) + len(face_points) + + corner_weight = settings.corner_points_weight + entropy_weight = settings.entropy_points_weight + face_weight = settings.face_points_weight + + weight_pref_total = corner_weight + entropy_weight + face_weight + + # weight things + pois = [] + if weight_pref_total == 0 or total_points == 0: + return pois + + pois.extend( + [ PointOfInterest( p.x, p.y, weight=p.weight * ( (corner_weight/weight_pref_total) / (len(corner_points)/total_points) )) for p in corner_points ] + ) + pois.extend( + [ PointOfInterest( p.x, p.y, weight=p.weight * ( (entropy_weight/weight_pref_total) / (len(entropy_points)/total_points) )) for p in entropy_points ] + ) + pois.extend( + [ PointOfInterest( p.x, p.y, weight=p.weight * ( (face_weight/weight_pref_total) / (len(face_points)/total_points) )) for p in face_points ] + ) + + average_point = poi_average(pois, settings) + + if settings.annotate_image: + d = ImageDraw.Draw(im) + for f in face_points: + d.rectangle(f.bounding(f.size), outline=RED) + for f in entropy_points: + d.rectangle(f.bounding(30), outline=BLUE) + for poi in pois: + w = max(4, 4 * 0.5 * sqrt(poi.weight)) + d.ellipse(poi.bounding(w), fill=BLUE) + d.ellipse(average_point.bounding(25), outline=GREEN) + + return average_point + + +def image_face_points(im, settings): + np_im = np.array(im) + gray = cv2.cvtColor(np_im, cv2.COLOR_BGR2GRAY) + + tries = [ + [ f'{cv2.data.haarcascades}haarcascade_eye.xml', 0.01 ], + [ f'{cv2.data.haarcascades}haarcascade_frontalface_default.xml', 0.05 ], + [ f'{cv2.data.haarcascades}haarcascade_profileface.xml', 0.05 ], + [ f'{cv2.data.haarcascades}haarcascade_frontalface_alt.xml', 0.05 ], + [ f'{cv2.data.haarcascades}haarcascade_frontalface_alt2.xml', 0.05 ], + [ f'{cv2.data.haarcascades}haarcascade_frontalface_alt_tree.xml', 0.05 ], + [ f'{cv2.data.haarcascades}haarcascade_eye_tree_eyeglasses.xml', 0.05 ], + [ f'{cv2.data.haarcascades}haarcascade_upperbody.xml', 0.05 ] + ] + + for t in tries: + # print(t[0]) + classifier = cv2.CascadeClassifier(t[0]) + minsize = int(min(im.width, im.height) * t[1]) # at least N percent of the smallest side + try: + faces = classifier.detectMultiScale(gray, scaleFactor=1.1, + minNeighbors=7, minSize=(minsize, minsize), flags=cv2.CASCADE_SCALE_IMAGE) + except: + continue + + if len(faces) > 0: + rects = [[f[0], f[1], f[0] + f[2], f[1] + f[3]] for f in faces] + return [PointOfInterest((r[0] +r[2]) // 2, (r[1] + r[3]) // 2, size=abs(r[0]-r[2])) for r in rects] + return [] + + +def image_corner_points(im, settings): + grayscale = im.convert("L") + + # naive attempt at preventing focal points from collecting at watermarks near the bottom + gd = ImageDraw.Draw(grayscale) + gd.rectangle([0, im.height*.9, im.width, im.height], fill="#999") + + np_im = np.array(grayscale) + + points = cv2.goodFeaturesToTrack( + np_im, + maxCorners=100, + qualityLevel=0.04, + minDistance=min(grayscale.width, grayscale.height)*0.07, + useHarrisDetector=False, + ) + + if points is None: + return [] + + focal_points = [] + for point in points: + x, y = point.ravel() + focal_points.append(PointOfInterest(x, y, size=4)) + + return focal_points + + +def image_entropy_points(im, settings): + landscape = im.height < im.width + portrait = im.height > im.width + if landscape: + move_idx = [0, 2] + move_max = im.size[0] + elif portrait: + move_idx = [1, 3] + move_max = im.size[1] + else: + return [] + + e_max = 0 + crop_current = [0, 0, settings.crop_width, settings.crop_height] + crop_best = crop_current + while crop_current[move_idx[1]] < move_max: + crop = im.crop(tuple(crop_current)) + e = image_entropy(crop) + + if (e > e_max): + e_max = e + crop_best = list(crop_current) + + crop_current[move_idx[0]] += 4 + crop_current[move_idx[1]] += 4 + + x_mid = int(crop_best[0] + settings.crop_width/2) + y_mid = int(crop_best[1] + settings.crop_height/2) + + return [PointOfInterest(x_mid, y_mid, size=25)] + + +def image_entropy(im): + # greyscale image entropy + # band = np.asarray(im.convert("L")) + band = np.asarray(im.convert("1"), dtype=np.uint8) + hist, _ = np.histogram(band, bins=range(0, 256)) + hist = hist[hist > 0] + return -np.log2(hist / hist.sum()).sum() + + +def poi_average(pois, settings): + weight = 0.0 + x = 0.0 + y = 0.0 + for poi in pois: + weight += poi.weight + x += poi.x * poi.weight + y += poi.y * poi.weight + avg_x = round(x / weight) + avg_y = round(y / weight) + + return PointOfInterest(avg_x, avg_y) + + +def is_landscape(w, h): + return w > h + + +def is_portrait(w, h): + return h > w + + +def is_square(w, h): + return w == h + + +class PointOfInterest: + def __init__(self, x, y, weight=1.0, size=10): + self.x = x + self.y = y + self.weight = weight + self.size = size + + def bounding(self, size): + return [ + self.x - size//2, + self.y - size//2, + self.x + size//2, + self.y + size//2 + ] + + +class Settings: + def __init__(self, crop_width=512, crop_height=512, corner_points_weight=0.5, entropy_points_weight=0.5, face_points_weight=0.5, annotate_image=False): + self.crop_width = crop_width + self.crop_height = crop_height + self.corner_points_weight = corner_points_weight + self.entropy_points_weight = entropy_points_weight + self.face_points_weight = entropy_points_weight + self.annotate_image = annotate_image self.destop_view_image = False \ No newline at end of file