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Windows Shell extension to allow image types such as Portable Pixmap Format (PPM), Portable Graymap Format (PGM) and Portable Bitmap Format (PBM) to get thumbnail, properties and data object support in Windows Explorer. Both ascii and binary versions of the above formats are supported. This extension will render thumbnails and properties (width, height, dimensions, bit depth) which will display in Windows Explorer. It also implements a data handler extension which will permit copying the file from Explorer and pasting in applications such as MSPaint or Photoshop.

Home Page: https://chrdavis.github.io/PIFShellExtensions/

License: MIT License

C++ 55.27% C 2.44% HTML 42.30%
cpp windows-shell windows-explorer shell-extension image-format pbm ppm pgm thumbnails windows

pifshellextensions's Introduction

Windows Shell extension to allow image types such as Portable Pixmap Format (PPM), Portable Graymap Format (PGM) and Portable Bitmap Format (PBM) to get thumbnail, properties and data object support in Windows Explorer. Both ascii and binary versions of the above formats are supported. This extension will render thumbnails and properties (width, height, dimensions, bit depth) which will display in Windows Explorer. It also implements a data handler extension which will permit copying the file from Explorer and pasting in applications such as MSPaint or Photoshop. For more information about the file formats click here.

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Latest 32 and 64 bit versions Windows Vista,7,8,10

You will likely need to restart windows for the extension to be picked up by Windows Explorer.

Screenshots

Image description

What the experience in Windows is without this extension

Image description

pifshellextensions's People

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explife0011 rocker9527 millieen raphaelk12 miikka75 yakumo-proj radtek webstorage119

pifshellextensions's Issues

PPM P3 with max value 65535 has wrong colors

I though normalizing image data to range [0, 255] would help but it didn't:

index 00c4a48..c492ca1 100644
--- a/PIFShellExtensionsLib/PIFParser.cpp
+++ b/PIFShellExtensionsLib/PIFParser.cpp
@@ -12,7 +12,7 @@ const LARGE_INTEGER c_liZero = { 0, 0 };
 CBaseImageParser::CBaseImageParser() :
     m_uWidth(0),
     m_uHeight(0),
-    m_uMaxValue(0),
+    m_uMaxValue(255),
     m_uDataLen(0),
     m_spStream(nullptr),
     m_rgData(nullptr),
@@ -231,7 +231,7 @@ HRESULT CBaseImageParser::ReadAsciiImageData()
                 {
                     char* pCurrNumStart = pAsciiData;
                     char* pCurrNumEnd = pAsciiData;
-
+                    double normalize = 1.0 / 255.0 * m_uMaxValue;
                     while (SUCCEEDED(hr) && pCurrNumStart && *pCurrNumStart != '\0')
                     {
                         // First walk any leading whitespace
@@ -257,7 +257,7 @@ HRESULT CBaseImageParser::ReadAsciiImageData()
                             hr = (static_cast<UINT>(pDataCurr - m_rgData) < m_uDataLen) ? S_OK : E_FAIL;
                             if (SUCCEEDED(hr))
                             {
-                                *pDataCurr = static_cast<BYTE>(atoi(pCurrNumStart));
+                                *pDataCurr = static_cast<BYTE>(atof(pCurrNumStart) * normalize);
                                 // Move our insertion pointer for the data
                                 pDataCurr++;
                             }

Any idea what else could be wrong in showing this image?

Color issues with some pictures

I am seeing incorrect colors in some of the previews. Looks like maybe the channels were switched? I can see that both those pictures are correct in GIMP, yet in windows I observe this:

obrazek

The one on the right is correct. All the pictures are generated by the same code.

Here are the original images:
debug_images.zip

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