src/java.desktop/share/classes/com/sun/imageio/plugins/tiff/TIFFLZWDecompressor.java

*** 160,179 ****
              }
          }
  
          if (predictor ==
              BaselineTIFFTagSet.PREDICTOR_HORIZONTAL_DIFFERENCING) {
  
!             for (int j = 0; j < srcHeight; j++) {
! 
!                 int count = dstOffset + samplesPerPixel * (j * srcWidth + 1);
  
!                 for (int i = samplesPerPixel; i < srcWidth * samplesPerPixel; i++) {
! 
!                     dstData[count] += dstData[count - samplesPerPixel];
                      count++;
                  }
              }
          }
  
          return dstIndex - dstOffset;
      }
--- 160,181 ----
              }
          }
  
          if (predictor ==
              BaselineTIFFTagSet.PREDICTOR_HORIZONTAL_DIFFERENCING) {
+             int step = planar || samplesPerPixel == 1 ? 1 : samplesPerPixel;
  
!             int samplesPerRow = step * srcWidth;
  
!             int off = dstOffset + step;
!             for (int j = 0; j < srcHeight; j++) {
!                 int count = off;
!                 for (int i = step; i < samplesPerRow; i++) {
!                     dstData[count] += dstData[count - step];
                      count++;
                  }
+                 off += samplesPerRow;
              }
          }
  
          return dstIndex - dstOffset;
      }