[英]Convert PIL Image to byte array?
I have an image in PIL Image format.我有一个 PIL Image 格式的图像。 I need to convert it to byte array.
我需要将其转换为字节数组。
img = Image.open(fh, mode='r')
roiImg = img.crop(box)
Now I need the roiImg
as a byte array.现在我需要
roiImg
作为字节数组。
Thanks everyone for your help.感谢大家的帮助。
Finally got it resolved!!终于解决了!!
import io
img = Image.open(fh, mode='r')
roi_img = img.crop(box)
img_byte_arr = io.BytesIO()
roi_img.save(img_byte_arr, format='PNG')
img_byte_arr = img_byte_arr.getvalue()
With this i don't have to save the cropped image in my hard disc and I'm able to retrieve the byte array from a PIL cropped image.有了这个,我不必将裁剪后的图像保存在我的硬盘中,我可以从 PIL 裁剪后的图像中检索字节数组。
This is my solution.Please use this function.这是我的解决方案。请使用此功能。
from PIL import Image
import io
def image_to_byte_array(image:Image):
imgByteArr = io.BytesIO()
image.save(imgByteArr, format=image.format)
imgByteArr = imgByteArr.getvalue()
return imgByteArr
I think you can simply call the PIL image's .tobytes()
method, and from there, to convert it to an array, use the bytes
built-in.我认为您可以简单地调用 PIL 图像的
.tobytes()
方法,然后从那里将其转换为数组,使用内置的bytes
。
#assuming image is a flattened, 3-channel numpy array of e.g. 600 x 600 pixels
bytesarray = bytes(Image.fromarray(array.reshape((600,600,3))).tobytes())
Python file read and extract binary array Python文件读取和提取二进制数组
import base64
with open(img_file_name, "rb") as f:
image_binary = f.read()
base64_encode = base64.b64encode(image_binary)
byte_decode = base64_encode.decode('utf8')
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