為了在 Selenium 下進行視覺測試，我進行了圖像比較測試（僅 2 張圖像）。我使用文件大小來查看是否存在差異。但是，沒有什么能告訴我哪里有這種差異，我希望能夠顯示圖像上顯示的差異。我在考慮按顏色而不是尺寸進行比較。這對我來說似乎很復雜，特別是因為我希望圖像輸出顯示差異（使用指定區域的裁剪）或通過提取受此差異影響的像素。您認為可以在 C# 中使用 selenium 來實現嗎？目前，我試過尺寸。public static void TestComapre(){ string imgPath1 = <//PATHNAME > string imgPath2 = <//PATHNAME > const int size = 1000; var len = new FileInfo(imgPath1).Length; if (len != new FileInfo(imgPath2).Length) var s1 = File.OpenRead(imgPath1); var s2 = File.OpenRead(imgPath2); var buf1 = new byte[size]; var buf2 = new byte[size]; for (int i = 0; i < len / size; i++) { s1.Read(buf1, 0, size); s2.Read(buf2, 0, size); if (CompareBuffers(buf1, buf2) == false) Assert.Fail(); } Assert.True(true);}
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不負相思意
TA貢獻1777條經驗 獲得超10個贊
我在 C# 中有一個定制的圖像比較器。
它比較 2 個圖像，忽略洋紅色像素（您可以使用洋紅色作為比較時要忽略的區域的掩碼）并在新圖像中將不同像素標記為藍色
///////////////////// 變量 /////////////////////////
private string pathReferenceImg;
private string pathTestImg;
private FileInfo fReferenceFile;
private FileInfo fTestFile;
private Bitmap referenceImage;
private Bitmap testImage;
private int areaToCompareWidth;
private int areaToCompareHeight;
public int xMinAreaToCompare = 0;
public int yMinAreaToCompare = 0;
public int pixelDifferenceQuantity = 0;
public List<Point> differentPixelsList = new List<Point>();
private int[] rgbArrayTestImgWithReferenceImgPink;
private int tolerance = 15;
public bool result = false;
////////////////////// 代碼 //////////////////////////
public void compareFiles(string pathReferenceImg, string pathTestImg)
{
fReferenceFile = new FileInfo(pathReferenceImg);
fTestFile = new FileInfo(pathTestImg);
referenceImage = new Bitmap(pathReferenceImg);
testImage = new Bitmap(pathTestImg);
areaToCompareWidth = referenceImage.Width;
areaToCompareHeight = referenceImage.Height;
while (xMinAreaToCompare < areaToCompareWidth)
{
Color colorRef = referenceImage.GetPixel(xMinAreaToCompare, yMinAreaToCompare);
Color colorTest = testImage.GetPixel(xMinAreaToCompare, yMinAreaToCompare);
//Magenta = 255R,255B,0G
if (colorRef.ToArgb() != Color.Magenta.ToArgb())
{
if (colorRef != colorTest)
{
pixelDifferenceQuantity++;
differentPixelsList.Add(new Point(xMinAreaToCompare, yMinAreaToCompare));
}
}
yMinAreaToCompare ++;
if (yMinAreaToCompare == areaToCompareHeight)
{
xMinAreaToCompare ++;
yMinAreaToCompare = 1;
}
}
if (pixelDifferenceQuantity >= tolerance)
{
Bitmap resultImage = new Bitmap(testImage);
foreach (Point pixel in differentPixelsList)
{
resultImage.SetPixel(pixel.X, pixel.Y, Color.Blue);
}
resultImage.Save(pathTestImg.Replace("TestFolder", "ResultFolder"));
}
else
{
result = true;
}
}
希望能幫助到你。
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