I have a binary image and want to find the area of white in the image

2 visualizaciones (últimos 30 días)
MJ Thangaraj
MJ Thangaraj el 8 de Mzo. de 2016
Comentada: Image Analyst el 8 de Mzo. de 2016
I used rgb2gray(), im2bw and I have a Binary Image all is to find the area of the white portion

Iniciar sesión para responder a esta pregunta.

Respuestas (1)

Image Analyst
Image Analyst el 8 de Mzo. de 2016
There are 3 ways
area1 = bwarea(binaryImage)
area2 = sum(binaryImage(:))
measurements = regionprops(logical(binaryImage), 'Area');
area3 = sum([measurements.Area])
The first one uses a different algorithm than the other two and will give different results depending on the shape of the boundary. The second two are just pixel counting.
  2 comentarios
MJ Thangaraj
MJ Thangaraj el 8 de Mzo. de 2016
But the Answer is in Pixels.What should I do to get it in cm2 or some other world units?
Image Analyst
Image Analyst el 8 de Mzo. de 2016
See my attached spatial calibration demo. If that answers all your questions, can you mark it as Accepted?

Iniciar sesión para comentar.

Categorías

Más información sobre Image Processing Toolbox en Help Center y File Exchange.

Etiquetas

Productos

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by