C # small tool for converting batch color images to black and white images (with source code)

Because the work needs to convert a large number of color images into black and white images, it takes some time to write one. For the convenience of the image, C # is used for development. The code is very simple, the Source Path, target path, overwrite Source Path, and progress bar are displayed. I have never studied C #, so the code is not very well written .. Hope everyone understands ---

(Note: because it is developed with vs2010, you need to install. Net framework4.0 to run it ..)

Using system; using system. collections. generic; using system. componentmodel; using system. data; using system. drawing; using system. LINQ; using system. text; using system. windows. forms; using system. io; namespace windowsformsapplication1 {public partial class form1: FORM {static ilist <string> Path = new list <string> (); // save your image name bitmap curbitmap = NULL; bitmap resbitmap = NULL; int COUNT = 0; Public form1 () {initializecomponent ();} private void sourcebtn_click (Object sender, eventargs e) {folderbrowserdialog dialog = new folderbrowserdialog (alog (); dialog. description = "select the file path"; if (dialog. showdialog () = dialogresult. OK) {sourcestr. TEXT = dialog. selectedpath ;}} private void resultbtn_click (Object sender, eventargs e) {folderbrowserdialog dialog = new folderbrowserdialog (); dialog. description = "select the file path"; if (dialog. showdialog () = dialogresult. OK) {resultstr. TEXT = dialog. selectedpath;} private void startbtn_click (Object sender, eventargs e) {directoryinfo di = new directoryinfo (sourcestr. text); // obtain the list of all files in this path. fileinfo [] fileinfo = di. getfiles (); Path. clear (); // start to get the image name foreach (fileinfo subinfo in fileinfo) {// determine whether the extension is the same if (subinfo. extension = ". jpg "| subinfo. extension = ". jpg "| subinfo. extension = ". JPEG "| subinfo. extension = ". JPEG ") {string strname = subinfo. name; // obtain the file name path. add (strname); // save the file name in the info. TEXT = "find" + path. count + "Images" ;}} if (path. count> 0) {progressbar1.value = 0; progressbar1.step = (INT) 100/path. count; new system. threading. thread (new system. threading. threadstart (starttransform )). start ();} else {MessageBox. show ("jpg image file not found") ;}} delegate void mydelegate (int param); void delegatemethod (int param) {total. TEXT = "processing" + (count + 1) + "/" + path. count + "Images"; if (count + 1) = path. count) {progressbar1.value = 100; total. TEXT = path. count + "image processing completed";} else {progressbar1.20.mstep () ;}} public void starttransform () {int IH, IW; string filename; For (COUNT = 0; count <path. count; count ++) {try {filename = path [count]; picturebox1.refresh (); image = image. fromfile (sourcestr. text + "\" + filename); curbitmap = new Bitmap (image); image. dispose (); picturebox1.image = curbitmap; IW = picturebox1.image. width; ih = picturebox1.image. height; resbitmap = togray (curbitmap, IW, IH); picturebox2.refresh (); picturebox2.image = resbitmap; If (iscover. checked) {picturebox2.image. save (sourcestr. text + "\" + filename); // overwrite the source file} else {picturebox2.image. save (resultstr. text + "\" + filename); // sets the Save path} // updates the UI interface this. invoke (New mydelegate (delegatemethod), count);} catch (system. exception ex) {MessageBox. show (ex. tostring () ;}} public bitmap togray (Bitmap BM, int IW, int IH) {color C = new color (); int T; // convert to grayscale image matrix for (Int J = 0; j <IH; j ++) {for (INT I = 0; I <IW; I ++) {c = BM. getpixel (I, j); t = (INT) (C. R + C. G + C. b)/3.0); BM. setpixel (I, j, color. fromargb (t, t, t) ;}} return bm;} private void iscover_checkedchanged (Object sender, eventargs e) {If (iscover. checked) {resultstr. enabled = false; resultbtn. enabled = false;} else {resultstr. enabled = true; resultbtn. enabled = true ;}}}}

Tools:

Http://download.csdn.net/detail/toss156/4300035If there is a problem with compression, You can decompress the file again ..

Http://download.csdn.net/detail/toss156/4303127