- (
`art5`) The original image.

- (
`art5dst1`) Result of Euclidean distance transforming

`art5`(and then pixel multiplying by 5.- (
`art5skl1`) Result of skeletonizing

`art5`.- (
`art5mat1`) The medial axis transform of

`art5`.- (
`art5cha1`) Result of image editing

`art5`.- (
`art5ske2`) Result of skeletonizing

`art5cha1`(using an algorithm which does not guarantee a connected skeleton).- (
`art5ske3`) Result of skeletonizing

`art5cha1`.- (
`art5cha2`) Result of image editing

`art5`.- (
`art5dst3`) The brightened (by a factor of 6) distance transform of

`art5cha2`.- (
`art5noi1`) Result of adding pepper noise to

`art5`.- (
`art5dst2`) The brightened (by a factor of 15) distance transform of

`art5noi1`.- (
`art5ske5`) Result of skeletonizing

`art5noi1`.- (
`art5low1`) Result of frequency filtering

`art5`with an ideal lowpass filter with a cut-off of .- (
`art5low3`) Result of histogram equalizing

`art5low1`.- (
`art5low2`) Result of frequency filtering

`art5`with an ideal lowpass filter with a cut-off of .- (
`art5low4`) Result of frequency filtering

`art5`with a Butterworth filter with a cut-off of .