Python cv2.COLOR_RGBA2BGRA Examples
The following are 10
code examples of cv2.COLOR_RGBA2BGRA().
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Example #1
Source File: oxford_retrieval.py From ArtMiner with MIT License | 6 votes |
def SkipIteration(I1, I2, saveQuality, out1, out2) : I1RGBA = cv2.cvtColor(np.array(I1), cv2.COLOR_RGBA2BGRA) I2RGBA = cv2.cvtColor(np.array(I2), cv2.COLOR_RGBA2BGRA) mask1 = np.ones((I1RGBA.shape[0], I1RGBA.shape[1])) * 100 mask2 = np.ones((I2RGBA.shape[0], I2RGBA.shape[1])) * 100 I1RGBA[:, :, 3] = mask1 I2RGBA[:, :, 3] = mask2 ratio1 = max(max(I1RGBA.shape[0], I1RGBA.shape[1]) / float(saveQuality), 1) I1RGBA =imresize(I1RGBA, (int(I1RGBA.shape[0] / ratio1), int(I1RGBA.shape[1] / ratio1))) ratio2 = max(I2RGBA.shape[0], I2RGBA.shape[1]) / float(saveQuality) I2RGBA =imresize(I2RGBA, (int(I2RGBA.shape[0] / ratio2), int(I2RGBA.shape[1] / ratio2))) cv2.imwrite(out1, I1RGBA) cv2.imwrite(out2, I2RGBA) ## Blur the mask
Example #2
Source File: pair_discovery.py From ArtMiner with MIT License | 6 votes |
def SkipIteration(I1, I2, saveQuality, out1, out2) : I1RGBA = cv2.cvtColor(np.array(I1), cv2.COLOR_RGBA2BGRA) I2RGBA = cv2.cvtColor(np.array(I2), cv2.COLOR_RGBA2BGRA) mask1 = np.ones((I1RGBA.shape[0], I1RGBA.shape[1])) * 100 mask2 = np.ones((I2RGBA.shape[0], I2RGBA.shape[1])) * 100 I1RGBA[:, :, 3] = mask1 I2RGBA[:, :, 3] = mask2 ratio1 = max(max(I1RGBA.shape[0], I1RGBA.shape[1]) / float(saveQuality), 1) I1RGBA =imresize(I1RGBA, (int(I1RGBA.shape[0] / ratio1), int(I1RGBA.shape[1] / ratio1))) ratio2 = max(I2RGBA.shape[0], I2RGBA.shape[1]) / float(saveQuality) I2RGBA =imresize(I2RGBA, (int(I2RGBA.shape[0] / ratio2), int(I2RGBA.shape[1] / ratio2))) cv2.imwrite(out1, I1RGBA) cv2.imwrite(out2, I2RGBA) ## Blur the mask
Example #3
Source File: image.py From ColorHistogram with MIT License | 5 votes |
def rgba2bgra(img): a = alpha(img) bgra = cv2.cvtColor(img, cv2.COLOR_RGBA2BGRA) bgra[:, :, 3] = a return bgra ## RGB to BGR.
Example #4
Source File: image.py From GuidedFilter with MIT License | 5 votes |
def rgba2bgra(img): a = alpha(img) bgra = cv2.cvtColor(img, cv2.COLOR_RGBA2BGRA) bgra[:, :, 3] = a return bgra ## RGB to BGR.
Example #5
Source File: cv2_backend.py From nnabla with Apache License 2.0 | 5 votes |
def imsave(self, path, img, channel_first=False, as_uint16=False, auto_scale=True): """ Save image by cv2 module. Args: path (str): output filename img (numpy.ndarray): Image array to save. Image shape is considered as (height, width, channel) by default. channel_first: This argument specifies the shape of img is whether (height, width, channel) or (channel, height, width). Default value is False, which means the img shape is (height, width, channel) as_uint16 (bool): If True, save image as uint16. auto_scale (bool) : Whether upscale pixel values or not. If you want to save float image, this argument must be True. In cv2 backend, all below are supported. - float ([0, 1]) to uint8 ([0, 255]) (if img.dtype==float and auto_scale==True and as_uint16==False) - float to uint16 ([0, 65535]) (if img.dtype==float and auto_scale==True and as_uint16==True) - uint8 to uint16 are supported (if img.dtype==np.uint8 and auto_scale==True and as_uint16==True) """ img = _imsave_before(img, channel_first, auto_scale) if auto_scale: img = upscale_pixel_intensity(img, as_uint16) img = check_type_and_cast_if_necessary(img, as_uint16) # revert channel order to opencv`s one. if len(img.shape) == 3: if img.shape[-1] == 3: img = cv2.cvtColor(img, cv2.COLOR_RGB2BGR) elif img.shape[-1] == 4: img = cv2.cvtColor(img, cv2.COLOR_RGBA2BGRA) cv2.imwrite(path, img)
Example #6
Source File: summary.py From petridishnn with MIT License | 5 votes |
def create_image_summary(name, val): """ Args: name(str): val(np.ndarray): 4D tensor of NHWC. assume RGB if C==3. Can be either float or uint8. Range has to be [0,255]. Returns: tf.Summary: """ assert isinstance(name, six.string_types), type(name) n, h, w, c = val.shape val = val.astype('uint8') s = tf.Summary() imparams = [cv2.IMWRITE_PNG_COMPRESSION, 9] for k in range(n): arr = val[k] # CV2 will only write correctly in BGR chanel order if c == 3: arr = cv2.cvtColor(arr, cv2.COLOR_RGB2BGR) elif c == 4: arr = cv2.cvtColor(arr, cv2.COLOR_RGBA2BGRA) tag = name if n == 1 else '{}/{}'.format(name, k) retval, img_str = cv2.imencode('.png', arr, imparams) if not retval: # Encoding has failed. continue img_str = img_str.tostring() img = tf.Summary.Image() img.height = h img.width = w # 1 - grayscale 3 - RGB 4 - RGBA img.colorspace = c img.encoded_image_string = img_str s.value.add(tag=tag, image=img) return s
Example #7
Source File: summary.py From ADL with MIT License | 5 votes |
def create_image_summary(name, val): """ Args: name(str): val(np.ndarray): 4D tensor of NHWC. assume RGB if C==3. Can be either float or uint8. Range has to be [0,255]. Returns: tf.Summary: """ assert isinstance(name, six.string_types), type(name) n, h, w, c = val.shape val = val.astype('uint8') s = tf.Summary() imparams = [cv2.IMWRITE_PNG_COMPRESSION, 9] for k in range(n): arr = val[k] # CV2 will only write correctly in BGR chanel order if c == 3: arr = cv2.cvtColor(arr, cv2.COLOR_RGB2BGR) elif c == 4: arr = cv2.cvtColor(arr, cv2.COLOR_RGBA2BGRA) tag = name if n == 1 else '{}/{}'.format(name, k) retval, img_str = cv2.imencode('.png', arr, imparams) if not retval: # Encoding has failed. continue img_str = img_str.tostring() img = tf.Summary.Image() img.height = h img.width = w # 1 - grayscale 3 - RGB 4 - RGBA img.colorspace = c img.encoded_image_string = img_str s.value.add(tag=tag, image=img) return s
Example #8
Source File: image_generator.py From YOLOv2 with MIT License | 5 votes |
def overlay(src_image, overlay_image, pos_x, pos_y): # オーバレイ画像のサイズを取得 ol_height, ol_width = overlay_image.shape[:2] # OpenCVの画像データをPILに変換 # BGRAからRGBAへ変換 src_image_RGBA = cv2.cvtColor(src_image, cv2.COLOR_BGR2RGB) overlay_image_RGBA = cv2.cvtColor(overlay_image, cv2.COLOR_BGRA2RGBA) # PILに変換 src_image_PIL=Image.fromarray(src_image_RGBA) overlay_image_PIL=Image.fromarray(overlay_image_RGBA) # 合成のため、RGBAモードに変更 src_image_PIL = src_image_PIL.convert('RGBA') overlay_image_PIL = overlay_image_PIL.convert('RGBA') # 同じ大きさの透過キャンパスを用意 tmp = Image.new('RGBA', src_image_PIL.size, (255, 255,255, 0)) # 用意したキャンパスに上書き tmp.paste(overlay_image_PIL, (pos_x, pos_y), overlay_image_PIL) # オリジナルとキャンパスを合成して保存 result = Image.alpha_composite(src_image_PIL, tmp) return cv2.cvtColor(np.asarray(result), cv2.COLOR_RGBA2BGRA) # 画像周辺のパディングを削除
Example #9
Source File: summary.py From tensorpack with Apache License 2.0 | 5 votes |
def create_image_summary(name, val): """ Args: name(str): val(np.ndarray): 4D tensor of NHWC. assume RGB if C==3. Can be either float or uint8. Range has to be [0,255]. Returns: tf.Summary: """ assert isinstance(name, six.string_types), type(name) n, h, w, c = val.shape val = val.astype('uint8') s = tf.Summary() imparams = [cv2.IMWRITE_PNG_COMPRESSION, 9] for k in range(n): arr = val[k] # CV2 will only write correctly in BGR chanel order if c == 3: arr = cv2.cvtColor(arr, cv2.COLOR_RGB2BGR) elif c == 4: arr = cv2.cvtColor(arr, cv2.COLOR_RGBA2BGRA) tag = name if n == 1 else '{}/{}'.format(name, k) retval, img_str = cv2.imencode('.png', arr, imparams) if not retval: # Encoding has failed. continue img_str = img_str.tostring() img = tf.Summary.Image() img.height = h img.width = w # 1 - grayscale 3 - RGB 4 - RGBA img.colorspace = c img.encoded_image_string = img_str s.value.add(tag=tag, image=img) return s
Example #10
Source File: gui.py From idcardgenerator with GNU General Public License v3.0 | 4 votes |
def generator(): global ename, esex, enation, eyear, emon, eday, eaddr, eidn, eorg, elife, ebgvar name = ename.get() sex = esex.get() nation = enation.get() year = eyear.get() mon = emon.get() day = eday.get() org = eorg.get() life = elife.get() addr = eaddr.get() idn = eidn.get() fname = askopenfilename(initialdir=os.getcwd(), title=u'选择头像') # print fname im = PImage.open(os.path.join(base_dir, 'empty.png')) avatar = PImage.open(fname) # 500x670 name_font = ImageFont.truetype(os.path.join(base_dir, 'hei.ttf'), 72) other_font = ImageFont.truetype(os.path.join(base_dir, 'hei.ttf'), 60) bdate_font = ImageFont.truetype(os.path.join(base_dir, 'fzhei.ttf'), 60) id_font = ImageFont.truetype(os.path.join(base_dir, 'ocrb10bt.ttf'), 72) draw = ImageDraw.Draw(im) draw.text((630, 690), name, fill=(0, 0, 0), font=name_font) draw.text((630, 840), sex, fill=(0, 0, 0), font=other_font) draw.text((1030, 840), nation, fill=(0, 0, 0), font=other_font) draw.text((630, 980), year, fill=(0, 0, 0), font=bdate_font) draw.text((950, 980), mon, fill=(0, 0, 0), font=bdate_font) draw.text((1150, 980), day, fill=(0, 0, 0), font=bdate_font) start = 0 loc = 1120 while start + 11 < len(addr): draw.text((630, loc), addr[start:start + 11], fill=(0, 0, 0), font=other_font) start += 11 loc += 100 draw.text((630, loc), addr[start:], fill=(0, 0, 0), font=other_font) draw.text((950, 1475), idn, fill=(0, 0, 0), font=id_font) draw.text((1050, 2750), org, fill=(0, 0, 0), font=other_font) draw.text((1050, 2895), life, fill=(0, 0, 0), font=other_font) if ebgvar.get(): avatar = cv2.cvtColor(np.asarray(avatar), cv2.COLOR_RGBA2BGRA) im = cv2.cvtColor(np.asarray(im), cv2.COLOR_RGBA2BGRA) im = changeBackground(avatar, im, (500, 670), (690, 1500)) im = PImage.fromarray(cv2.cvtColor(im, cv2.COLOR_BGRA2RGBA)) else: avatar = avatar.resize((500, 670)) avatar = avatar.convert('RGBA') im.paste(avatar, (1500, 690), mask=avatar) #im = paste(avatar, im, (500, 670), (690, 1500)) im.save('color.png') im.convert('L').save('bw.png') showinfo(u'成功', u'文件已生成到目录下,黑白bw.png和彩色color.png')