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authorNick White <git@njw.name>2019-05-13 17:31:26 +0100
committerNick White <git@njw.name>2019-05-13 17:31:26 +0100
commita931288d3e813d069a2b6b010e5af4d73d308cf2 (patch)
tree390efabf90d484568e5ed12bd4ed0603e40dfd48 /cleanup/wipesides_test.go
parent1ac5035ef55d2f97d1b98a309d83a09a84395e07 (diff)
Rename cleanup package to preproc, and add basic cmd version
Diffstat (limited to 'cleanup/wipesides_test.go')
-rw-r--r--cleanup/wipesides_test.go105
1 files changed, 0 insertions, 105 deletions
diff --git a/cleanup/wipesides_test.go b/cleanup/wipesides_test.go
deleted file mode 100644
index aa3e590..0000000
--- a/cleanup/wipesides_test.go
+++ /dev/null
@@ -1,105 +0,0 @@
-package cleanup
-
-// TODO: add different pages as test cases
-// TODO: test non integral img version
-
-import (
- "flag"
- "fmt"
- "image"
- "image/draw"
- "image/png"
- "os"
- "testing"
-
- "rescribe.xyz/go.git/binarize"
-)
-
-var update = flag.Bool("update", false, "update golden files")
-
-func decode(s string) (*image.Gray, error) {
- f, err := os.Open(s)
- defer f.Close()
- if err != nil {
- return nil, err
- }
- img, err := png.Decode(f)
- if err != nil {
- return nil, err
- }
- b := img.Bounds()
- gray := image.NewGray(image.Rect(0, 0, b.Dx(), b.Dy()))
- draw.Draw(gray, b, img, b.Min, draw.Src)
- return gray, nil
-}
-
-func imgsequal(img1 *image.Gray, img2 *image.Gray) bool {
- b := img1.Bounds()
- if !b.Eq(img2.Bounds()) {
- return false
- }
- for y := b.Min.Y; y < b.Max.Y; y++ {
- for x := b.Min.X; x < b.Max.X; x++ {
- r0, g0, b0, a0 := img1.At(x, y).RGBA()
- r1, g1, b1, a1 := img2.At(x, y).RGBA()
- if r0 != r1 {
- return false
- }
- if g0 != g1 {
- return false
- }
- if b0 != b1 {
- return false
- }
- if a0 != a1 {
- return false
- }
- }
- }
- return true
-}
-
-func TestWipeSides(t *testing.T) {
- cases := []struct {
- name string
- orig string
- golden string
- thresh float64
- wsize int
- }{
- {"integralwipesides", "testdata/pg1.png", "testdata/pg1_integralwipesides_t0.02_w5.png", 0.02, 5},
- {"integralwipesides", "testdata/pg1.png", "testdata/pg1_integralwipesides_t0.05_w5.png", 0.05, 5},
- {"integralwipesides", "testdata/pg1.png", "testdata/pg1_integralwipesides_t0.05_w25.png", 0.05, 25},
- }
-
- for _, c := range cases {
- t.Run(fmt.Sprintf("%s_%0.2f_%d", c.name, c.thresh, 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)
- }
- integral := binarize.Integralimg(orig)
- lowedge, highedge := Findedges(integral, c.wsize, c.thresh)
- actual = Wipesides(orig, lowedge, highedge)
- 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("Processed %s differs to %s\n", c.orig, c.golden)
- }
- })
- }
-}