teratail
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トップJavaに関する質問画像をタップして色コードを取得し、近い色を探して色名を得るプログラム

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3

package 削除

2021/07/30 07:28

投稿

jimbe
jimbe

スコア13429

answer CHANGED
@@ -4,8 +4,6 @@
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5
  NamedColor.java
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6
  ```java
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- package com.teratail.q351712;
8
-
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  import android.graphics.Color;
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  enum NamedColor {
@@ -73,8 +71,6 @@
73
71
  ```
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  MainActivity.java
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  ```java
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- package com.teratail.q351712;
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-
78
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  import androidx.appcompat.app.AppCompatActivity;
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75
 
80
76
  import android.os.Bundle;

2

コードフォーマット微修正

2021/07/30 07:28

投稿

jimbe
jimbe

スコア13429

answer CHANGED
@@ -56,9 +56,7 @@
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  b = Color.blue(rgb);
57
57
  }
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58
 
59
- public String getName() {
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+ public String getName() { return name; }
60
- return name;
61
- }
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60
  public Color getColor() { return Color.valueOf(Color.rgb(r, g, b)); }
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61
  public String toString() {
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62
  StringBuffer sb = new StringBuffer(super.toString());

1

NamedColor バグ修正

2021/07/30 05:41

投稿

jimbe
jimbe

スコア13429

answer CHANGED
@@ -1,4 +1,4 @@
1
- hoshi-takanori さんがコメントされました URL 先のコードをenum化して試してみましたが… 黒(rgb=0) を指定しても黒にならず orz
1
+ hoshi-takanori さんがコメントされました URL 先のコードをenum化して試してみましたが… ~~黒(rgb=0) を指定しても黒にならず orz~~ ←バグでした。(Color.red()等が0～255ではありませんでした)
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2
 
3
3
  NamedColor.getApproximateColor を弄ってみてください・・・なレベルになってしまいました。
4
4
 
@@ -9,32 +9,32 @@
9
9
  import android.graphics.Color;
10
10
 
11
11
  enum NamedColor {
12
- AliceBlue("AliceBlue", 0xFFF0F8FF), AntiqueWhite("AntiqueWhite", 0xFFFAEBD7), Aqua("Aqua", 0xFF00FFFF), Aquamarine("Aquamarine", 0xFF7FFFD4), Azure("Azure", 0xFFF0FFFF),
13
- Beige("Beige", 0xFFF5F5DC), Bisque("Bisque", 0xFFFFE4C4), Black("Black", 0xFF000000), BlanchedAlmond("BlanchedAlmond", 0xFFFFEBCD), Blue("Blue", 0xFF0000FF), BlueViolet("BlueViolet", 0xFF8A2BE2), Brown("Brown", 0xFFA52A2A), BurlyWood("BurlyWood", 0xFFDEB887),
14
- CadetBlue("CadetBlue", 0xFF5F9EA0), Chartreuse("Chartreuse", 0xFF7FFF00), Chocolate("Chocolate", 0xFFD2691E), Coral("Coral", 0xFFFF7F50), CornflowerBlue("CornflowerBlue", 0xFF6495ED), Cornsilk("Cornsilk", 0xFFFFF8DC), Crimson("Crimson", 0xFFDC143C), Cyan("Cyan", 0xFF00FFFF),
15
- DarkBlue("DarkBlue", 0xFF00008B), DarkCyan("DarkCyan", 0xFF008B8B), DarkGoldenrod("DarkGoldenrod", 0xFFB8860B), DarkGray("DarkGray", 0xFFA9A9A9), DarkGreen("DarkGreen", 0xFF006400), DarkKhaki("DarkKhaki", 0xFFBDB76B), DarkMagenta("DarkMagenta", 0xFF8B008B), DarkOliveGreen("DarkOliveGreen", 0xFF556B2F), DarkOrange("DarkOrange", 0xFFFF8C00), DarkOrchid("DarkOrchid", 0xFF9932CC), DarkRed("DarkRed", 0xFF8B0000), DarkSalmon("DarkSalmon", 0xFFE9967A), DarkSeaGreen("DarkSeaGreen", 0xFF8FBC8F), DarkSlateBlue("DarkSlateBlue", 0xFF483D8B), DarkSlateGray("DarkSlateGray", 0xFF2F4F4F), DarkTurquoise("DarkTurquoise", 0xFF00CED1), DarkViolet("DarkViolet", 0xFF9400D3), DeepPink("DeepPink", 0xFFFF1493), DeepSkyBlue("DeepSkyBlue", 0xFF00BFFF), DimGray("DimGray", 0xFF696969), DodgerBlue("DodgerBlue", 0xFF1E90FF),
16
- Firebrick("Firebrick", 0xFFB22222), FloralWhite("FloralWhite", 0xFFFFFAF0), ForestGreen("ForestGreen", 0xFF228B22), Fuchsia("Fuchsia", 0xFFFF00FF),
17
- Gainsboro("Gainsboro", 0xFFDCDCDC), GhostWhite("GhostWhite", 0xFFF8F8FF), Gold("Gold", 0xFFFFD700), Goldenrod("Goldenrod", 0xFFDAA520), Gray("Gray", 0xFF808080), Green("Green", 0xFF008000), GreenYellow("GreenYellow", 0xFFADFF2F),
18
- Honeydew("Honeydew", 0xFFF0FFF0), HotPink("HotPink", 0xFFFF69B4),
19
- IndianRed("IndianRed", 0xFFCD5C5C), Indigo("Indigo", 0xFF4B0082), Ivory("Ivory", 0xFFFFFFF0),
20
- Khaki("Khaki", 0xFFF0E68C),
21
- Lavender("Lavender", 0xFFE6E6FA), LavenderBlush("LavenderBlush", 0xFFFFF0F5), LawnGreen("LawnGreen", 0xFF7CFC00), LemonChiffon("LemonChiffon", 0xFFFFFACD), LightBlue("LightBlue", 0xFFADD8E6), LightCoral("LightCoral", 0xFFF08080), LightCyan("LightCyan", 0xFFE0FFFF), LightGoldenrodYellow("LightGoldenrodYellow", 0xFFFAFAD2), LightGray("LightGray", 0xFFD3D3D3), LightGreen("LightGreen", 0xFF90EE90), LightPink("LightPink", 0xFFFFB6C1), LightSalmon("LightSalmon", 0xFFFFA07A), LightSeaGreen("LightSeaGreen", 0xFF20B2AA), LightSkyBlue("LightSkyBlue", 0xFF87CEFA), LightSlateGray("LightSlateGray", 0xFF778899), LightSteelBlue("LightSteelBlue", 0xFFB0C4DE), LightYellow("LightYellow", 0xFFFFFFE0), Lime("Lime", 0xFF00FF00), LimeGreen("LimeGreen", 0xFF32CD32), Linen("Linen", 0xFFFAF0E6),
22
- Magenta("Magenta", 0xFFFF00FF), Maroon("Maroon", 0xFF800000), MediumAquamarine("MediumAquamarine", 0xFF66CDAA), MediumBlue("MediumBlue", 0xFF0000CD), MediumOrchid("MediumOrchid", 0xFFBA55D3), MediumPurple("MediumPurple", 0xFF9370DB), MediumSeaGreen("MediumSeaGreen", 0xFF3CB371), MediumSlateBlue("MediumSlateBlue", 0xFF7B68EE), MediumSpringGreen("MediumSpringGreen", 0xFF00FA9A), MediumTurquoise("MediumTurquoise", 0xFF48D1CC), MediumVioletRed("MediumVioletRed", 0xFFC71585), MidnightBlue("MidnightBlue", 0xFF191970), MintCream("MintCream", 0xFFF5FFFA), MistyRose("MistyRose", 0xFFFFE4E1), Moccasin("Moccasin", 0xFFFFE4B5),
23
- NavajoWhite("NavajoWhite", 0xFFFFDEAD), Navy("Navy", 0xFF000080),
24
- OldLace("OldLace", 0xFFFDF5E6), Olive("Olive", 0xFF808000), OliveDrab("OliveDrab", 0xFF6B8E23), Orange("Orange", 0xFFFFA500), OrangeRed("OrangeRed", 0xFFFF4500), Orchid("Orchid", 0xFFDA70D6),
25
- PaleGoldenrod("PaleGoldenrod", 0xFFEEE8AA), PaleGreen("PaleGreen", 0xFF98FB98), PaleTurquoise("PaleTurquoise", 0xFFAFEEEE), PaleVioletRed("PaleVioletRed", 0xFFDB7093), PapayaWhip("PapayaWhip", 0xFFFFEFD5), PeachPuff("PeachPuff", 0xFFFFDAB9), Peru("Peru", 0xFFCD853F), Pink("Pink", 0xFFFFC0CB), Plum("Plum", 0xFFDDA0DD), PowderBlue("PowderBlue", 0xFFB0E0E6), Purple("Purple", 0xFF800080),
26
- Red("Red", 0xFFFF0000), RosyBrown("RosyBrown", 0xFFBC8F8F), RoyalBlue("RoyalBlue", 0xFF4169E1),
27
- SaddleBrown("SaddleBrown", 0xFF8B4513), Salmon("Salmon", 0xFFFA8072), SandyBrown("SandyBrown", 0xFFF4A460), SeaGreen("SeaGreen", 0xFF2E8B57), SeaShell("SeaShell", 0xFFFFF5EE), Sienna("Sienna", 0xFFA0522D), Silver("Silver", 0xFFC0C0C0), SkyBlue("SkyBlue", 0xFF87CEEB), SlateBlue("SlateBlue", 0xFF6A5ACD), SlateGray("SlateGray", 0xFF708090), Snow("Snow", 0xFFFFFAFA), SpringGreen("SpringGreen", 0xFF00FF7F), SteelBlue("SteelBlue", 0xFF4682B4),
28
- Tan("Tan", 0xFFD2B48C), Teal("Teal", 0xFF008080), Thistle("Thistle", 0xFFD8BFD8), Tomato("Tomato", 0xFFFF6347), Turquoise("Turquoise", 0xFF40E0D0),
29
- Violet("Violet", 0xFFEE82EE),
30
- Wheat("Wheat", 0xFFF5DEB3), White("White", 0xFFFFFFFF), WhiteSmoke("WhiteSmoke", 0xFFF5F5F5),
31
- Yellow("Yellow", 0xFFFFFF01), YellowGreen("YellowGreen", 0xFF9ACD32);
12
+ AliceBlue("AliceBlue", 0xF0F8FF), AntiqueWhite("AntiqueWhite", 0xFAEBD7), Aqua("Aqua", 0x00FFFF), Aquamarine("Aquamarine", 0x7FFFD4), Azure("Azure", 0xF0FFFF),
13
+ Beige("Beige", 0xF5F5DC), Bisque("Bisque", 0xFFE4C4), Black("Black", 0x000000), BlanchedAlmond("BlanchedAlmond", 0xFFEBCD), Blue("Blue", 0x0000FF), BlueViolet("BlueViolet", 0x8A2BE2), Brown("Brown", 0xA52A2A), BurlyWood("BurlyWood", 0xDEB887),
14
+ CadetBlue("CadetBlue", 0x5F9EA0), Chartreuse("Chartreuse", 0x7FFF00), Chocolate("Chocolate", 0xD2691E), Coral("Coral", 0xFF7F50), CornflowerBlue("CornflowerBlue", 0x6495ED), Cornsilk("Cornsilk", 0xFFF8DC), Crimson("Crimson", 0xDC143C), Cyan("Cyan", 0x00FFFF),
15
+ DarkBlue("DarkBlue", 0x00008B), DarkCyan("DarkCyan", 0x008B8B), DarkGoldenrod("DarkGoldenrod", 0xB8860B), DarkGray("DarkGray", 0xA9A9A9), DarkGreen("DarkGreen", 0x006400), DarkKhaki("DarkKhaki", 0xBDB76B), DarkMagenta("DarkMagenta", 0x8B008B), DarkOliveGreen("DarkOliveGreen", 0x556B2F), DarkOrange("DarkOrange", 0xFF8C00), DarkOrchid("DarkOrchid", 0x9932CC), DarkRed("DarkRed", 0x8B0000), DarkSalmon("DarkSalmon", 0xE9967A), DarkSeaGreen("DarkSeaGreen", 0x8FBC8F), DarkSlateBlue("DarkSlateBlue", 0x483D8B), DarkSlateGray("DarkSlateGray", 0x2F4F4F), DarkTurquoise("DarkTurquoise", 0x00CED1), DarkViolet("DarkViolet", 0x9400D3), DeepPink("DeepPink", 0xFF1493), DeepSkyBlue("DeepSkyBlue", 0x00BFFF), DimGray("DimGray", 0x696969), DodgerBlue("DodgerBlue", 0x1E90FF),
16
+ Firebrick("Firebrick", 0xB22222), FloralWhite("FloralWhite", 0xFFFAF0), ForestGreen("ForestGreen", 0x228B22), Fuchsia("Fuchsia", 0xFF00FF),
17
+ Gainsboro("Gainsboro", 0xDCDCDC), GhostWhite("GhostWhite", 0xF8F8FF), Gold("Gold", 0xFFD700), Goldenrod("Goldenrod", 0xDAA520), Gray("Gray", 0x808080), Green("Green", 0x008000), GreenYellow("GreenYellow", 0xADFF2F),
18
+ Honeydew("Honeydew", 0xF0FFF0), HotPink("HotPink", 0xFF69B4),
19
+ IndianRed("IndianRed", 0xCD5C5C), Indigo("Indigo", 0x4B0082), Ivory("Ivory", 0xFFFFF0),
20
+ Khaki("Khaki", 0xF0E68C),
21
+ Lavender("Lavender", 0xE6E6FA), LavenderBlush("LavenderBlush", 0xFFF0F5), LawnGreen("LawnGreen", 0x7CFC00), LemonChiffon("LemonChiffon", 0xFFFACD), LightBlue("LightBlue", 0xADD8E6), LightCoral("LightCoral", 0xF08080), LightCyan("LightCyan", 0xE0FFFF), LightGoldenrodYellow("LightGoldenrodYellow", 0xFAFAD2), LightGray("LightGray", 0xD3D3D3), LightGreen("LightGreen", 0x90EE90), LightPink("LightPink", 0xFFB6C1), LightSalmon("LightSalmon", 0xFFA07A), LightSeaGreen("LightSeaGreen", 0x20B2AA), LightSkyBlue("LightSkyBlue", 0x87CEFA), LightSlateGray("LightSlateGray", 0x778899), LightSteelBlue("LightSteelBlue", 0xB0C4DE), LightYellow("LightYellow", 0xFFFFE0), Lime("Lime", 0x00FF00), LimeGreen("LimeGreen", 0x32CD32), Linen("Linen", 0xFAF0E6),
22
+ Magenta("Magenta", 0xFF00FF), Maroon("Maroon", 0x800000), MediumAquamarine("MediumAquamarine", 0x66CDAA), MediumBlue("MediumBlue", 0x0000CD), MediumOrchid("MediumOrchid", 0xBA55D3), MediumPurple("MediumPurple", 0x9370DB), MediumSeaGreen("MediumSeaGreen", 0x3CB371), MediumSlateBlue("MediumSlateBlue", 0x7B68EE), MediumSpringGreen("MediumSpringGreen", 0x00FA9A), MediumTurquoise("MediumTurquoise", 0x48D1CC), MediumVioletRed("MediumVioletRed", 0xC71585), MidnightBlue("MidnightBlue", 0x191970), MintCream("MintCream", 0xF5FFFA), MistyRose("MistyRose", 0xFFE4E1), Moccasin("Moccasin", 0xFFE4B5),
23
+ NavajoWhite("NavajoWhite", 0xFFDEAD), Navy("Navy", 0x000080),
24
+ OldLace("OldLace", 0xFDF5E6), Olive("Olive", 0x808000), OliveDrab("OliveDrab", 0x6B8E23), Orange("Orange", 0xFFA500), OrangeRed("OrangeRed", 0xFF4500), Orchid("Orchid", 0xDA70D6),
25
+ PaleGoldenrod("PaleGoldenrod", 0xEEE8AA), PaleGreen("PaleGreen", 0x98FB98), PaleTurquoise("PaleTurquoise", 0xAFEEEE), PaleVioletRed("PaleVioletRed", 0xDB7093), PapayaWhip("PapayaWhip", 0xFFEFD5), PeachPuff("PeachPuff", 0xFFDAB9), Peru("Peru", 0xCD853F), Pink("Pink", 0xFFC0CB), Plum("Plum", 0xDDA0DD), PowderBlue("PowderBlue", 0xB0E0E6), Purple("Purple", 0x800080),
26
+ Red("Red", 0xFF0000), RosyBrown("RosyBrown", 0xBC8F8F), RoyalBlue("RoyalBlue", 0x4169E1),
27
+ SaddleBrown("SaddleBrown", 0x8B4513), Salmon("Salmon", 0xFA8072), SandyBrown("SandyBrown", 0xF4A460), SeaGreen("SeaGreen", 0x2E8B57), SeaShell("SeaShell", 0xFFF5EE), Sienna("Sienna", 0xA0522D), Silver("Silver", 0xC0C0C0), SkyBlue("SkyBlue", 0x87CEEB), SlateBlue("SlateBlue", 0x6A5ACD), SlateGray("SlateGray", 0x708090), Snow("Snow", 0xFFFAFA), SpringGreen("SpringGreen", 0x00FF7F), SteelBlue("SteelBlue", 0x4682B4),
28
+ Tan("Tan", 0xD2B48C), Teal("Teal", 0x008080), Thistle("Thistle", 0xD8BFD8), Tomato("Tomato", 0xFF6347), Turquoise("Turquoise", 0x40E0D0),
29
+ Violet("Violet", 0xEE82EE),
30
+ Wheat("Wheat", 0xF5DEB3), White("White", 0xFFFFFF), WhiteSmoke("WhiteSmoke", 0xF5F5F5),
31
+ Yellow("Yellow", 0xFFFF01), YellowGreen("YellowGreen", 0x9ACD32);
32
32
 
33
- public static NamedColor getApproximateColor(int argb) {
33
+ public static NamedColor getApproximateColor(int rgb) {
34
34
  int min = Integer.MAX_VALUE;
35
- int r = Color.red(argb);
35
+ int r = Color.red(rgb);
36
- int g = Color.green(argb);
36
+ int g = Color.green(rgb);
37
- int b = Color.blue(argb);
37
+ int b = Color.blue(rgb);
38
38
  NamedColor color = null;
39
39
  for(NamedColor c : values()) {
40
40
  int mse = c.computeMSE(r, g, b);
@@ -47,24 +47,29 @@
47
47
  }
48
48
 
49
49
  private String name;
50
- private Color color;
50
+ private int r, g, b;
51
51
 
52
- NamedColor(String name, int argb) {
52
+ NamedColor(String name, int rgb) {
53
53
  this.name = name;
54
+ r = Color.red(rgb);
55
+ g = Color.green(rgb);
54
- color = Color.valueOf(argb);
56
+ b = Color.blue(rgb);
55
57
  }
56
58
 
57
59
  public String getName() {
58
60
  return name;
59
61
  }
62
+ public Color getColor() { return Color.valueOf(Color.rgb(r, g, b)); }
60
- public Color getColor() {
63
+ public String toString() {
64
+ StringBuffer sb = new StringBuffer(super.toString());
65
+ sb.append("[r=").append(r);
66
+ sb.append(",g=").append(g);
67
+ sb.append(",b=").append(b);
61
- return color;
68
+ return sb.append("]").toString();
62
69
  }
63
70
 
64
- private int computeMSE(int r, int g, int b) {
71
+ private int computeMSE(int pr, int pg, int pb) {
65
- return (int) (((r - color.red()) * (r - color.red())
72
+ return (int)(((pr - r) * (pr - r) + (pg - g) * (pg - g) + (pb - b) * (pb - b)) / 3);
66
- + (g - color.green()) * (g - color.green())
67
- + (b - color.blue()) * (b - color.blue())) / 3);
68
73
  }
69
74
  }
70
75
  ```