Some photos, want to use ImageEN to batch processing, to reduce the size, I don't know which control method with?

CodePudding user response:

ImageEN use ah, I used for many years,

CodePudding user response:

ImageEN more powerful, scalable, can rotate, if just adaptive scaling, can complete with own image,

CodePudding user response:

Use a TBitMap to Draw the ripping it is smaller, BitMap. Canvas. The Draw...

CodePudding user response:

Smaller size, better to do, the use of the Image, you can,
Reference code:

 procedure TSeleteImageFrm. ChangeAnyPixels (Bmp: TBitmap; NewBmp: TBitmap; Width, Height: Integer); 
//Bmp source map NewBmp new Width Height high pixel wide 
The begin 
NewBmp. Width:=Width; 
NewBmp. Height:=Height; 
NewBmp. Canvas. StretchDraw (NewBmp. Canvas. ClipRect, Bmp); 
end; 

Procedure TSeleteImageFrm. Button2Click (Sender: TObject); 
Var MyRect NewRect: TRect; 
Bmp, NewBmp: TBitmap; 
FileName: the string; 
The begin 
Image1. Picture. LoadFromFile (FileNAME); 
Bmp:=TBitmap. Create; 
NewBmp:=TBitmap. Create; 

MyRect:=the Rect (XX1, YY1 XX2, YY2); 
NewRect:=the Rect (0, 0, XX2 - XX1 YY2 - YY1); 
Bmp. Canvas. CopyRect (NewRect, Image1. Canvas, MyRect); 

Case ComboBox1. Less ItemIndex of//shrinkage 
0: ChangeAnyPixels (Bmp, NewBmp, 100133); 
1: ChangeAnyPixels (Bmp, NewBmp, 150200); 
2: ChangeAnyPixels (Bmp, NewBmp, 200266); 
3: ChangeAnyPixels (Bmp, NewBmp, 225300); 
4: ChangeAnyPixels (Bmp, NewBmp, 300400); 
end; 

Image1. Picture. The Bitmap. The Assign (NewBmp); 
Image1. SaveToFile (ImagePath + TempName + '. BMP '); 
Bmp. Free; 
NewBmp. Free; 
end; 

code for reference only,

CodePudding user response:

Do not need to write any code, ImageEn have zoom function, I estimate that you want is how to compress the picture,