Top: pixel-to-pixel comparison of column densities derived with the NIR+MIR dust extinction technique and the Herschel dust emission mapping. The color scale and contours show the density of data points in the scatter plot. The dashed line shows the one-to-one relation. The red solid line shows the median relationship. Bottom: histogram of the ratio of Herschel-derived column densities to NIR+MIR dust extinction derived column densities. The black solid line shows the histogram for all the data in the field. The blue line shows the histogram for the area with column density over N(H₂) > 10 × 10²¹ cm^-2. The dashed line shows the ratio of one.