如何在google视觉api中获取image_properties的颜色百分比?
How to get the percentage of color from image_properties in google vision api?
我正在尝试使用 Google Vision API 进行颜色检测。为此,我正在使用 python 库。当我获取 image_properties 时,我得到如下结果
colors {
color {
red: 52.0
green: 94.0
blue: 96.0
}
score: 0.11754503101110458
pixel_fraction: 0.04190981388092041
}
但是如何计算在这种情况下得出的百分比 "18%"
Actual Output of the Google Vision Api
我假设你已经得到了每个颜色记录的 result using Vision demo. This percentage (18%) is calculated by taking the score 并将其除以所有分数的总和:
% "percent" = score / (score1 + score2 + score3 + ... + scoreN)
将此输出转换为ProtoBuf,然后再转换为json,这将是简单的提取。
def json_to_hash_dump(vision_response):
"""
a function defined to take a convert the
response from vision api to json object transformation via protoBuff
Args:
vision_response
Returns:
json_object
"""
from google.protobuf.json_format import MessageToJson
json_obj = MessageToJson((vision_response._pb))
# to dict items
r = json.loads(json_obj)
return r
我正在尝试使用 Google Vision API 进行颜色检测。为此,我正在使用 python 库。当我获取 image_properties 时,我得到如下结果
colors {
color {
red: 52.0
green: 94.0
blue: 96.0
}
score: 0.11754503101110458
pixel_fraction: 0.04190981388092041
}
但是如何计算在这种情况下得出的百分比 "18%"
Actual Output of the Google Vision Api
我假设你已经得到了每个颜色记录的 result using Vision demo. This percentage (18%) is calculated by taking the score 并将其除以所有分数的总和:
% "percent" = score / (score1 + score2 + score3 + ... + scoreN)
将此输出转换为ProtoBuf,然后再转换为json,这将是简单的提取。
def json_to_hash_dump(vision_response):
"""
a function defined to take a convert the
response from vision api to json object transformation via protoBuff
Args:
vision_response
Returns:
json_object
"""
from google.protobuf.json_format import MessageToJson
json_obj = MessageToJson((vision_response._pb))
# to dict items
r = json.loads(json_obj)
return r