are the white in the med/high freq pictures for dark points or for light points
keenan
@penguin The bright spots in each image contribute signal to the final composite image.
UhrmasJHHue
What does different ranges of frequencies mean to an image? Is it how busy the image is? Is there a definition...?
hlin1
From 18-290 if I recall correctly, frequency in an image is measuring the rate of change between each pixel. With lower frequencies, you can capture rates of change over a longer distance, hence the low frequencies can capture the light differences between for example the paper and the shirt. Higher frequencies on the other hand can capture differences over a shorter distance, hence the high frequencies show the more drastic, sharp changes in the image.
are the white in the med/high freq pictures for dark points or for light points
@penguin The bright spots in each image contribute signal to the final composite image.
What does different ranges of frequencies mean to an image? Is it how busy the image is? Is there a definition...?
From 18-290 if I recall correctly, frequency in an image is measuring the rate of change between each pixel. With lower frequencies, you can capture rates of change over a longer distance, hence the low frequencies can capture the light differences between for example the paper and the shirt. Higher frequencies on the other hand can capture differences over a shorter distance, hence the high frequencies show the more drastic, sharp changes in the image.