Does the input X to ReLU1_1 exclude the conv1_1 RGB contributions and only pass through the bias?
Author: learnpython1985Created Jun 21, 2026Updated Jun 21, 2026
Hi, thanks for this excellent visualization!
I have a question about the conv1_1 → ReLU1_1 path. The output of a convolution layer should be the sum of the element-wise products across all input channels (R, G, B) plus the bias term:
conv1_1 output = sum(kernel_R * input_R)
+ sum(kernel_G * input_G)
+ sum(kernel_B * input_B)
+ biasWhen I inspect the value X that feeds into ReLU1_1, it looks like the RGB contributions from conv1_1 are NOT being included, and only the bias value is being passed through.
Is my understanding correct? Is this intended behavior, or am I misreading how the value is computed/displayed?
Thank you for your time!
Source: poloclub/cnn-explainer