diff options
Diffstat (limited to 'sauvola_test.go')
-rw-r--r-- | sauvola_test.go | 70 |
1 files changed, 0 insertions, 70 deletions
diff --git a/sauvola_test.go b/sauvola_test.go deleted file mode 100644 index fd5da60..0000000 --- a/sauvola_test.go +++ /dev/null @@ -1,70 +0,0 @@ -// Copyright 2019 Nick White. -// Use of this source code is governed by the GPLv3 -// license that can be found in the LICENSE file. - -package preproc - -import ( - "fmt" - "image" - "image/png" - "os" - "testing" -) - -func TestBinarization(t *testing.T) { - cases := []struct { - name string - orig string - golden string - ksize float64 - wsize int - }{ - {"integralsauvola", "testdata/pg1.png", "testdata/pg1_integralsauvola_k0.5_w41.png", 0.5, 41}, - {"integralsauvola", "testdata/pg1.png", "testdata/pg1_integralsauvola_k0.5_w19.png", 0.5, 19}, - {"integralsauvola", "testdata/pg1.png", "testdata/pg1_integralsauvola_k0.3_w19.png", 0.3, 19}, - {"sauvola", "testdata/pg1.png", "testdata/pg1_sauvola_k0.5_w41.png", 0.5, 41}, - {"sauvola", "testdata/pg1.png", "testdata/pg1_sauvola_k0.5_w19.png", 0.5, 19}, - {"sauvola", "testdata/pg1.png", "testdata/pg1_sauvola_k0.3_w19.png", 0.3, 19}, - } - - for _, c := range cases { - t.Run(fmt.Sprintf("%s_%0.1f_%d", c.name, c.ksize, c.wsize), func(t *testing.T) { - var actual *image.Gray - orig, err := decode(c.orig) - if err != nil { - t.Fatalf("Could not open file %s: %v\n", c.orig, err) - } - switch c.name { - case "integralsauvola": - actual = IntegralSauvola(orig, c.ksize, c.wsize) - case "sauvola": - if !testing.Short() { - actual = Sauvola(orig, c.ksize, c.wsize) - } else { - t.Skip("Skipping long test due to -short flag.\n") - } - default: - t.Fatalf("No method %s\n", c.name) - } - if *update { - f, err := os.Create(c.golden) - defer f.Close() - if err != nil { - t.Fatalf("Could not open file %s to update: %v\n", c.golden, err) - } - err = png.Encode(f, actual) - if err != nil { - t.Fatalf("Could not encode update of %s: %v\n", c.golden, err) - } - } - golden, err := decode(c.golden) - if err != nil { - t.Fatalf("Could not open file %s: %v\n", c.golden, err) - } - if !imgsequal(golden, actual) { - t.Errorf("Binarized %s differs to %s\n", c.orig, c.golden) - } - }) - } -} |